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                                                                     EXHIBIT 3.i


                    RESTATED CERTIFICATE OF INCORPORATION

                                      OF

                              MASCO CORPORATION

                                  * * * * *

     MASCO CORPORATION, a corporation organized and existing under the laws of
the State of Delaware, hereby certifies as follows:

     1.  The name of the corporation is MASCO CORPORATION. The date of filing 
its original  Certificate of Incorporation  with the Secretary of State was June
15, 1962.

     2.  This Restated Certificate of Incorporation only restates and integrates
and does not further amend the provisions of the Certificate of Incorporation of
this corporation as heretofore amended or supplemented and there is no
discrepancy between those provisions and the provisions of this Restated
Certificate of Incorporation.

     3.  The text of the Certificate of Incorporation as amended or supplemented
heretofore is hereby restated without further amendments or changes to read as
herein set forth in full:

     FIRST:   The name of the corporation is
                    MASCO CORPORATION.

     SECOND:  Its registered office in the State of Delaware is located at the
Corporation Trust Center, 1209 Orange Street, in the City of Wilmington, County
of New Castle. The name and address 




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of its registered agent is The Corporation Trust Company, 1209 Orange Street,
Wilmington, Delaware 19801.

     THIRD:   The nature of the business, or objects or purposes to be 
transacted,  promoted or carried on are: To engage in any lawful act or activity
for which  corporations  may be organized  under the General  Corporation Law of
Delaware.

     FOURTH:  The total number of shares of stock the Corporation shall have 
authority to issue is four hundred one million (401,000,000) shares.

     Four hundred million  (400,000,000)  of such shares shall consist of common
shares,  par value one dollar ($1.00) per share, and one million  (1,000,000) of
such shares shall consist of preferred shares,  par value one dollar ($1.00) per
share.

     The designations and the powers, preferences and rights, and the
qualifications, limitations or restrictions thereof are as follows:

           A.   Each share of common stock shall be equal in all respects to all
     other shares of such stock, and each share of outstanding common stock is
     entitled to one vote.

           B.   Each share of preferred stock shall have or not have voting
     rights as determined by the Board of Directors prior to issuance.

           Dividends on all outstanding shares of preferred stock must be
     declared and paid, or set aside for payment, before any dividends can be
     declared and paid, or set aside for payment, on the shares of common stock
     with respect to the same dividend period.

           In the event of any liquidation, dissolution or winding up of the
     affairs of the Corporation, whether voluntary or involuntary, the holders
     of the preferred stock shall be entitled, before any assets of the
     Corporation shall be distributed among or paid over to the holders of the
     common stock, to an amount per share to be determined before issuance by
     the Board of Directors, together with a sum of money equivalent to the
     amount of any dividends declared thereon and remaining unpaid at the date
     of such liquidation, dissolution or winding up of the Corporation. After
     the making of such






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     payments to the holders of the preferred stock, the remaining assets of the
     Corporation shall be distributed among the holders of the common stock
     alone, according to the number of shares held by each. If, upon such
     liquidation, dissolution or winding up, the assets of the Corporation
     distributable as aforesaid among the holders of the preferred stock shall
     be insufficient to permit the payment to them of said amount, the entire
     assets shall be distributed ratably among the holders of the preferred
     stock.

           The Board of Directors shall have authority to divide the shares of
     preferred stock into series and fix, from time to time, before issuance,
     the number of shares to be included in any series and the designation,
     relative rights, preferences and limitations of all shares of such series.
     The authority of the Board of Directors with respect to each series shall
     include the determination of any or all of the following, and the shares of
     each series may vary from the shares of any other in the following
     respects: (a) the number of shares constituting such series and the
     designation thereof to distinguish the shares of such series from the
     shares of all other series; (b) the rate of dividend, cumulative or
     noncumulative, and the extent of further participation in dividend
     distribution, if any; (c) the prices at which issued (at not less than par)
     and the terms and conditions upon which the shares may be redeemable by the
     Corporation; (d) sinking fund provisions for the redemption or purchase of
     shares; (e) the voting rights; and (f) the terms and conditions upon which
     the shares are convertible into other classes of stock of the Corporation,
     if such shares are to be convertible.

           C.   No holder of any class of stock issued by this Corporation shall
     be entitled to pre-emptive rights.

     FIFTH:   The Corporation is to have perpetual existence.

     SIXTH:   The private property of the stockholders shall not be subject to 
the payment of corporate debts to any extent whatever.

     SEVENTH: (a) The business and affairs of the Corporation shall be managed 
by or under the direction of a Board of Directors consisting of not less than
five nor more than twelve directors, the exact number of directors to be
determined from time to time by resolution adopted by affirmative vote of a
majority of the entire Board of Directors. The directors shall be divided into
three



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classes, designated Class I, Class II and Class III. Each class shall consist,
as nearly as may be possible, of one-third of the total number of directors
constituting the entire Board of Directors. At the 1988 Annual Meeting of
stockholders, Class I directors shall be elected for a one-year term, Class II
directors for a two-year term and Class III directors for a three-year term. At
each succeeding Annual Meeting of stockholders beginning in 1989, successors to
the class of directors whose term expires at that annual meeting shall be
elected for a three-year term. If the number of directors is changed, any
increase or decrease shall be apportioned among the classes so as to maintain
the number of directors in each class as nearly equal as possible, and any
additional director of any class elected to fill a vacancy resulting from an
increase in such class shall hold office for a term that shall coincide with the
remaining term of that class, but in no case will a decrease in the number of
directors shorten the term of any incumbent director. A director shall hold
office until the annual meeting for the year in which his term expires and until
his successor shall be elected and shall qualify, subject, however, to prior
death, resignation, retirement or removal from office. Except as otherwise
required by law, any vacancy on the Board of Directors that results from an
increase in the number of directors shall be filled only by a majority of the
Board of Directors then in office, provided that a quorum is present, and any
other vacancy occurring in the Board of Directors shall be filled only by a
majority of the directors then in office, even if less than a quorum, or by a
sole remaining director. Any director elected to fill a vacancy not resulting
from an increase in the number of directors shall serve for the remaining term
of his predecessor.

     Notwithstanding the foregoing, whenever the holders of any one or more
classes or series of preferred stock or any other class of stock issued by the
Corporation shall have the right, voting separately by class or series, to elect
directors at an annual or special meeting of stockholders, the election, term of
office, filling of vacancies and other features of such directorships shall be
governed by the terms of the Certificate of Designation with respect to such
stock, such directors so elected shall not be divided into classes pursuant to
this Article SEVENTH, and the number of such directors shall not be counted in
determining the maximum number of directors permitted under the foregoing
provisions of this Article SEVENTH, in each case unless expressly provided by
such terms.

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     (b)  Nominations for the election of directors may be made by the Board of
Directors or by any stockholder entitled to vote in the election of directors.
Any stockholder entitled to vote in the election of directors, however, may
nominate one or more persons for election as director only if written notice of
such stock- holder's intent to make such nomination or nominations has been
given either by personal delivery or by United States mail, postage prepaid, to
the Secretary of the Corporation not later than (i) with respect to an election
to be held at an Annual Meeting of stockholders, 45 days in advance of the date
on which the Corporation's proxy statement was released to stockholders in
connection with the previous year's Annual Meeting of stockholders and (ii) with
respect to an election to be held at a special meeting of stockholders for the
election of directors, the close of business on the seventh day following the
day on which notice of such meeting is first given to stockholders. Each such
notice shall include: (A) the name and address of the stockholder who intends to
make the nomination or nominations and of the person or persons to be nominated;
(B) a representation that the stockholder is a holder of record of stock of the
Corporation entitled to vote at such meeting and intends to appear in person or
by proxy at the meeting to nominate the person or persons specified in the
notice; (C) a description of all arrangements or understandings between such
stockholder and each nominee and any other person or persons (naming such person
or persons) pursuant to which the nomination or nominations is or are to be made
by the stockholder; (D) such other information regarding each nominee proposed
by such stockholder as would have been required to be included in a proxy
statement filed pursuant to the proxy rules of the Securities and Exchange
Commission if the nominee had been nominated by the Board of Directors; and (E)
the written consent of each nominee to serve as a director of the Corporation if
elected. The chairman of any meeting of stockholders may refuse to acknowledge
the nomination of any person if not made in compliance with the foregoing
procedure.

     (c)  Notwithstanding any other provision of this Certificate of
Incorporation or the by-laws (and notwithstanding the fact that a lesser
percentage may be specified by law, this Certificate of Incorporation or the
by-laws), and in addition to any affirmative vote required by law, the
affirmative vote of the holders of at least 80% of the voting power of the
outstanding capital stock of the Corporation entitled to vote, voting together
as a single class, shall be required to amend, adopt in this Certificate of
Incorporation or in the by-laws any provision inconsistent with, or repeal this
Article SEVENTH.

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     EIGHTH:  Any action required or permitted to be taken by the stockholders
of the Corporation must be effected at a duly called annual or special meeting
of such holders and may not be effected by any consent in writing by any such
holders. Except as otherwise required by law, special meetings of stockholders
of the Corpora- tion may be called only by the Chairman of the Board, the
President or a majority of the Board of Directors, subject to the rights of
holders of any one or more classes or series of preferred stock or any other
class of stock issued by the Corporation which shall have the right, voting
separately by class or series, to elect directors. Notwithstanding any other
provision of this Certificate of Incorporation or the by-laws (and
notwithstanding that a lesser percentage may be specified by law, this
Certificate of Incorporation or the by-laws), and in addition to any affirmative
vote required by law, the affirmative vote of the holders of at least 80% of the
voting power of the outstanding capital stock of the Corporation entitled to
vote, voting together as a single class, shall be required to amend, adopt in
this Certificate of Incorporation or in the by-laws any provision inconsistent
with, or repeal this Article EIGHTH.

     NINTH:   In furtherance and not in limitation of the powers conferred by
statute, the Board of Directors is expressly authorized:

     To make, alter or repeal the by-laws of the Corporation.

     To authorize and cause to be executed mortgages and liens upon the real and
personal property of the Corporation.

     To set apart out of any of the funds of the Corporation available for
dividends a reserve or reserves for any proper purpose and to abolish any such
reserve in the manner in which it was created.

     By resolution passed by a majority of the whole board, to designate one or
more committees, each committee to consist of two or more of the Directors of
the Corporation, which, to the extent provided in the resolution or in the
by-laws of the Corporation, shall have and may exercise the powers of the Board
of Directors in the management of the business and affairs of the Corporation,
and may authorize the seal of the Corporation to be affixed to all papers which
may require it. Such committee or committees shall have such name or names as
may be stated in the by-laws of the



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Corporation or as may be determined from time to time by resolution adopted by
the Board of Directors.

     When and as authorized by the affirmative vote of the holders of a majority
of the stock issued and outstanding having voting power given at a stockholders'
meeting duly called for that purpose, to sell, lease or exchange all of the
property and assets of the Corporation, including its good will and its
corporate franchises, upon such terms and conditions and for such consideration,
which may be in whole or in part shares of stock in, and/or other securities of,
any other corporation or corporations, as its Board of Directors shall deem
expedient and for the best interests of the Corporation.

     TENTH:   Whenever a compromise or arrangement is proposed between this
Corporation and its creditors or any class of them and/or between this
Corporation and its stockholders or any class of them, any court of equitable
jurisdiction within the State of Delaware may, on the application in a summary
way of this Corporation or of any creditor or stockholder thereof, or on the
application of any receiver or receivers appointed for this Corporation under
the provisions of Section 279 of Title 8 of the Delaware Code order a meeting of
the creditors or class of creditors, and/or of the stockholders or class of
stockholders of this Corporation, as the case may be, to be summoned in such
manner as the said court directs. If a majority in number representing
three-fourths in value of the creditors or class of creditors, and/or of the
stockholders or class of stockholders of this Corporation, as the case may be,
agree to any compromise or arrangement and to any reorganization of this
Corporation as consequence of such compromise or arrangement, the said
compromise or arrangement and the said reorganization shall, if sanctioned by
the court to which the said application has been made, be binding on all the
creditors or class of creditors, and/or on all the stockholders or class of
stockholders, of this Corporation, as the case may be, and also on this
Corporation.

     ELEVENTH:  Meetings of stockholders may be held outside the State of
Delaware, if the by-laws so provide. The books of the Corporation may be kept
(subject to any provision contained in the statutes) outside the State of
Delaware at such place or places as may be designated from time to time by the
Board of Directors or in the by-laws of the Corporation. Elections of Directors
need not be by ballot unless the by-laws of the Corporation shall so provide.

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     TWELFTH:  The Corporation reserves the right to amend, alter, change or
repeal any provision contained in this certificate of incorporation, in the
manner now or hereafter prescribed by statute, and all rights conferred upon
stockholders herein are granted subject to this reservation.

     THIRTEENTH: 1. The affirmative vote of the holders of 95% of all shares of
stock of the Corporation entitled to vote in elections of directors, considered
for the purposes of this Article THIRTEENTH as one class, shall be required for
the adoption or authorization of a business combination (as hereinafter defined)
with any other entity (as hereinafter defined) if, as of the record date for the
determination of stockholders entitled to notice thereof and to vote thereon,
such other entity is the beneficial owner, directly or indirectly, of 30% or
more of the outstanding shares of stock of the Corporation entitled to vote in
elections of directors considered for the purposes of this Article THIRTEENTH as
one class; provided that such 95% voting requirement shall not be applicable if:

     (a)  The cash, or fair market value of other consideration, to be received
per share by common stockholders of the Corporation in such business combination
bears the same or a greater percentage relationship to the market price of the
Corporation's common stock immediately prior to the announcement of such
business combination as the highest per share price (including brokerage
commissions and soliciting dealers' fees) which such other entity has
theretofore paid for any of the shares of the Corporation's common stock already
owned by it bears to the market price of the common stock of the Corporation
immediately prior to the commencement of acquisition of the Corporation's common
stock by such other entity;

     (b)  The cash, or fair market value of other consideration, to be received
per share by common stockholders of the Corporation in such business combination
(i) is not less than the highest per share price (including brokerage
commissions and soliciting dealers' fees) paid by such other entity in acquiring
any of its holdings of the Corporation's common stock, and (ii) is not less than
the earnings per share of common stock of the Corporation for the four full
consecutive fiscal quarters immediately preceding the record date for
solicitation of votes on such business combination, multiplied by the then
price/earnings multiple (if any) of such other entity as customarily computed
and reported in the financial community;

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     (c)  After such other entity has acquired a 30% interest and prior to the
consummation of such business combination: (i) such other entity shall have
taken steps to ensure that the Corpora- tion's Board of Directors included at
all times representation by continuing director(s) (as hereinafter defined)
proportionate to the stockholdings of the Corporation's public common
stockholders not affiliated with such other entity (with a continuing director
to occupy any resulting fractional board position); (ii) there shall have been
no reduction in the rate of dividends payable on the Corporation's common stock
except as necessary to insure that a quarterly dividend payment does not exceed
5% of the net income of the Corporation for the four full consecutive fiscal
quarters immediately preceding the declaration date of such dividend, or except
as may have been approved by a unanimous vote of the directors; (iii) such other
entity shall not have acquired any newly issued shares of stock, directly or
indirectly, from the Corporation (except upon conversion of convertible
securities acquired by it prior to obtaining a 30% interest or as a result of a
pro rata stock dividend or stock split); and (iv) such other entity shall not
have acquired any additional shares of the Corporation's outstanding common
stock or securities convertible into common stock except as a part of the
transaction which results in such other entity acquiring its 30% interest;

     (d)  Such other entity shall not have (i) received the benefit, directly or
indirectly (except proportionately as a stockholder) of any loans, advances,
guarantees, pledges or other financial assis- tance or tax credits of or
provided by the Corporation, or (ii) made any major change in the Corporation's
business or equity capital structure without the unanimous approval of the
directors, in either case prior to the consummation of such business
combination; and

     (e)  A proxy statement responsive to the requirements of the United States
securities laws shall be mailed to all common stock- holders of the Corporation
for the purpose of soliciting stock- holder approval of such business
combination and shall contain on its first page thereof, in a prominent place,
any recommendations as to the advisability (or inadvisability) of the business
combination which the continuing directors, or any of them, may choose to state
and, if deemed advisable by a majority of the continuing directors, an opinion
of a reputable investment banking firm as to the fairness (or not) of the terms
of such business combination, from the point of view of the remaining public
stockholders of the Corporation (such investment banking firm to be



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selected by a majority of the continuing directors and to be paid a reasonable
fee for their services by the Corporation upon receipt of such opinion).

     The provisions of this Article THIRTEENTH shall also apply to a business
combination with any other entity which at any time has been the beneficial
owner, directly or indirectly, of 30% or more of the outstanding shares of stock
of the Corporation entitled to vote in elections of directors considered for the
purposes of this Article THIRTEENTH as one class, notwithstanding the fact that
such other entity has reduced its shareholdings below 30% if, as of the record
date for the determination of stockholders entitled to notice of and to vote on
to the business combination, such other entity is an "affiliate" of the
Corporation (as hereinafter defined).

     2.   As used in this Article THIRTEENTH, (a) the term "other entity" shall
include any corporation, person or other entity and any other entity with which
it or its "affiliate" or "associate" (as defined below) has any agreement,
arrangement or understanding, directly or indirectly, for the purpose of
acquiring, holding, voting or disposing of stock of the Corporation, or which is
its "affiliate" or "associate" as those terms are defined in Rule 12b-2 of the
General Rules and Regulations under the Securities Exchange Act of 1934 as in
effect on March 31, 1981, together with the successors and assigns of such
persons in any transaction or series of transactions not involving a public
offering of the Corpora- tion's stock within the meaning of the Securities Act
of 1933; (b) an other entity shall be deemed to be the beneficial owner of any
shares of stock of the Corporation which the other entity (as defined above) has
the right to acquire pursuant to any agreement, arrangement or understanding or
upon exercise of conversion rights, warrants or options, or otherwise; (c) the
outstanding shares of any class of stock of the Corporation shall include shares
deemed owned through application of clause (b) above but shall not include any
other shares which may be issuable pursuant to any agreement, or upon exercise
of conversion rights, warrants or options, or otherwise; (d) the term "business
combination" shall include any merger or consolidation of the Corporation with
or into any other entity, or the sale or lease of all or any substantial part of
the assets of the Corporation to, or any sale or lease to the Corporation or any
subsidiary thereof in exchange for securities of the Corporation of any assets
(except assets having an aggregate fair market value of less than $5,000,000) of
any other entity; (e) the term "continuing director" shall mean a person who was
a member



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of the Board of Directors of the Corporation elected by stockholders prior to
the time that such other entity acquired in excess of 10% of the stock of the
Corporation entitled to vote in the election of directors, or a person
recommended to succeed a continuing director by a majority of continuing
directors; and (f) for the purposes of subparagraphs l(a) and (b) of this
Article THIRTEENTH the term "other consideration to be received" shall mean, in
addition to other consideration received, if any, capital stock of the
Corporation retained by its existing public stockholders in the event of a
business combination with such other entity in which the Corporation is the
surviving corporation.

     3.   A majority of the continuing directors shall have the power and duty
to determine for the purposes of this Article THIRTEENTH on the basis of
information known to them whether (a) such other entity beneficially owns 30% or
more of the outstanding shares of stock of the Corporation entitled to vote in
elections of directors; (b) an other entity is an "affiliate" or "associate" (as
defined above) of another; (c) an other entity has an agreement, arrangement or
understanding with another; or (d) the assets being acquired by the Corporation,
or any subsidiary thereof, have an aggregate fair market value of less than
$5,000,000.

     4.   No amendment to the Certificate of Incorporation of the Corporation
shall amend or repeal any of the provisions of this Article THIRTEENTH, unless
the amendment effecting such amendment or repeal shall receive the affirmative
vote of the holders of 95% of all shares of stock of the corporation entitled to
vote in elections of directors, considered for the purposes of this Article
THIRTEENTH as one class; provided that this paragraph 4 shall not apply to, and
such 95% vote shall not be required for, any amendment or repeal unanimously
recommended to the stockholders by the Board of Directors of the Corporation if
all of such directors are persons who would be eligible to serve as "continuing
directors" within the meaning of paragraph 2 of this Article THIRTEENTH.

     5.   Nothing contained in this Article THIRTEENTH shall be construed to
relieve any other entity from any fiduciary obligation imposed by law.

     FOURTEENTH: A director of this Corporation shall not be personally liable
to the Corporation or its stockholders for monetary damages for breach of
fiduciary duty as a director, except for liability (a) for any breach of the
director's duty of loyalty



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to the Corporation or its stockholders, (b) for acts or omissions not in good
faith or which involve intentional misconduct or a knowing violation of law, (c)
under Section 174 of the Delaware General Corporation Law, or (d) for any
transaction from which the director derived an improper personal benefit. If the
Delaware General Corporation Law hereafter is amended to authorize the further
limitation or elimination of the liability of directors, then the liability of a
director of the Corporation, in addition to the limitation on liability provided
herein, shall be limited to the fullest extent permitted by the Delaware General
Corporation Law, as amended. Any repeal or modification of this Article
FOURTEENTH shall not increase the liability of any director of this Corporation
for any act or occurrence taking place prior to such repeal or modification, or
otherwise adversely affect any right or protection of a director of the
Corporation existing at the time of such repeal or modification.

     FIFTEENTH: 1. Each person who was or is made a party or is threatened to be
made a party to or is otherwise involved in any action, suit or proceeding,
whether civil, criminal, administrative or investigative, by reason of the fact
that such person is or was a director, officer or employee of the Corporation,
whether the basis of such proceeding is alleged action in an official capacity
as a director, officer or employee or in any other capacity while serving as a
director, officer, or employee, shall be indemnified and held harmless by the
Corporation to the fullest extent permitted by the Delaware General Corporation
Law, as the same exists or may hereafter be amended (but, in the case of any
such amendment, only to the extent that such amendment permits the Corporation
to provide broader indemnification rights than such law permitted the
Corporation to provide prior to such amendment), against all expense, liability
and loss (including, without limitation, attorneys' fees, judgments, fines and
amounts paid in settlement) reasonably incurred or suffered by such person in
connection therewith, and such indemnification shall continue as to a person who
has ceased to be a director, officer or employee and shall inure to the benefit
of such person's heirs, executors and administrators. The Corporation shall
indemnify a director, officer or employee in connection with an action, suit or
proceeding (other than an action, suit or proceeding to enforce indemnification
rights provided for herein or elsewhere) initiated by such director, officer or
employee only if such action, suit or proceeding was authorized by the Board of
Directors. The right to indemnification conferred in this Paragraph 1 shall be a
contract right and shall include the right to be paid by the Corporation the



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expenses incurred in defending any action, suit or proceeding in advance of its
final disposition; provided, however, that, if the Delaware General Corporation
Law requires, the payment of such expenses incurred by a director or officer in
such person's capacity as a director or officer (and not in any other capacity
in which service was or is rendered by such person) in advance of the final
disposition of an action, suit or proceeding shall be made only upon delivery to
the Corporation of an undertaking, by or on behalf of such director or officer,
to repay all amounts so advanced if it shall ultimately be determined by final
judicial decision from which there is no further right to appeal that such
director or officer is not entitled to be indemnified for such expenses under
this Article FIFTEENTH or otherwise.

     2.   The Corporation may, to the extent authorized from time to time by the
Board of Directors, provide indemnification and the advancement of expenses, to
any agent of the Corporation and to any person (other than directors, officers
and employees of the Corpo- ration, who shall be entitled to indemnification
under Paragraph 1 above) who is or was serving at the request of the Corporation
as a director, officer, employee or agent of another corporation or of a
partnership, joint venture, trust or other enterprise, to such extent and to
such effect as the Board of Directors shall determine to be appropriate and
permitted by applicable law, as the same exists or may hereafter be amended.

     3.   The rights to indemnification and to the advancement of expenses
conferred in this Article FIFTEENTH shall not be exclusive of any other right
which any person may have or hereafter acquire under any statute, provision of
the Certificate of Incorporation or by-laws of the Corporation, agreement, vote
of stockholders or disinterested directors or otherwise.

     4.   This Restated Certificate of Incorporation was duly adopted by the 
Board of Directors in accordance with Section 245 of the General Corporation Law
of Delaware.

               IN WITNESS WHEREOF, said MASCO CORPORATION has caused its 
corporate seal to be affixed and this Certificate to be



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signed by Richard A. Manoogian, its Chairman of the Board, and attested by
Gerald Bright, its Secretary, this 25th day of May, 1988.

                                   MASCO CORPORATION



                                   BY /s/ Richard A. Manoogian
                                      ---------------------------
                                      Richard A. Manoogian
                                      Chairman of the Board


ATTEST:



/s/ Gerald Bright
- ----------------------
Gerald Bright
Secretary

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STATE OF MICHIGAN   )
                    )
COUNTY OF WAYNE     )


     I,                  , a notary public, do hereby certify that on this 25th 
day of May, 1988, personally appeared before me Richard A. Manoogian, who, being
by me first duly sworn, declared that he is the Chairman of the Board of Masco
Corporation, that he signed the foregoing document as the act and deed of said
corporation, and that the statements therein contained are true.



                                             /s/ Terry Lynn Przybylo
                                             -----------------------
                                             Notary Public                  
                                             Wayne County, Michigan

My commission expires:



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                              CERTIFICATE OF MERGER
                                       OF
                                WASTE KING, INC.
                                      INTO
                                MASCO CORPORATION

     Masco Corporation, a corporation organized and existing under and by virtue
of the General Corporation Law of the State of Delaware (the "GCL"), certifies
that:

     FIRST:   The name and state of incorporation of each of the constituent
corporations is as follows:

                                         State of
          Name                           Incorporation
          ----                           -------------

Masco Corporation ("Masco")                 Delaware
Waste King, Inc.  ("Waste King")            Delaware

     SECOND:  An Agreement of Merger between Masco and Waste King with respect 
to the merger of Waste King into Masco (the "Merger"), has been approved,
adopted, certified, executed and acknowledged by each of the constituent
corporations in accordance with Section 251 of the GCL.

     THIRD:  That the name of the surviving corporation of the Merger is Masco
Corporation, a Delaware corporation.

     FOURTH:  That the Restated Certificate of Incorporation of Masco, which is
the surviving corporation, shall continue in full force and effect as the
Restated Certificate of Incorporation of the surviving corporation.

     FIFTH:   The executed Agreement is on file at the principal place of 
business of the surviving corporation, 21001 Van Born Road, Taylor, Michigan
48180.

     SIXTH:   A copy of the Agreement will be furnished by the surviving
corporation, on request and without cost, to any stockholder of the constituent
corporations.

     SEVENTH: This Certificate of Merger shall be effective as of January 1,
1993.


                                             MASCO CORPORATION


                                             By/s/ Richard G. Mosteller
                                               -------------------------


   17

                                             Richard G. Mosteller
                                             Senior Vice President - Finance
ATTEST:

By/s/ Gerald Bright
  -----------------
  Gerald Bright
  Secretary



   18

                                                                       EXHIBIT A




                           CERTIFICATE OF DESIGNATION
                                       OF
                        SERIES A PARTICIPATING CUMULATIVE
                                 PREFERRED STOCK

                                       OF

                                MASCO CORPORATION

                         Pursuant to Section 151 of the
                         General Corporation Law of the
                                State of Delaware




         We, Richard G. Mosteller, Senior Vice President - Finance, and Eugene
A. Gargaro, Jr., Vice President and Secretary, of Masco Corporation, a
corporation organized and existing under the General Corporation Law of the
State of Delaware ("Delaware Law"), in accordance with the provisions thereof,
DO HEREBY CERTIFY:

         That pursuant to the authority conferred upon the Board of Directors by
the Certificate of Incorporation of the Corporation, the Board of Directors on
December 6, 1995, adopted the following resolution creating a series of
Preferred Stock in the amount and having the designation, voting powers,
preferences and relative, participating, optional and other special rights and
qualifications, limitations and restrictions thereof as follows:

         Section 1.   Designation and Number of Shares. The shares of such 
series shall be designated as "Series A Participating Cumulative Preferred
Stock" (the "Series A Preferred Stock"), and the number of shares constituting
such series shall be 175,106. Such number of shares of the Series A Preferred
Stock may be increased or decreased by resolution of the Board of Directors;




   19

provided that no decrease shall reduce the number of shares of Series A
Preferred Stock to a number less than the number of shares then outstanding plus
the number of shares issuable upon exercise or conversion of outstanding rights,
options or other securities issued by the Corporation.



   20

         Section 2.  Dividends and Distributions.

         (A)   The holders of shares of Series A Preferred Stock shall be 
entitled to receive, when, as and if declared by the Board of Directors out of
funds legally available for the purpose, quarterly dividends payable on February
15, May 15, August 15 and November 15 of each year (each such date being
referred to herein as a "Quarterly Dividend Payment Date"), commencing on the
first Quarterly Dividend Payment Date after the first issuance of any share or
fraction of a share of Series A Preferred Stock, in an amount per share (rounded
to the nearest cent) equal to the greater of (a) $1.00 and (b) subject to the
provision for adjustment hereinafter set forth, 1,000 times the aggregate per
share amount of all cash dividends or other distributions and 1,000 times the
aggregate per share amount of all non-cash dividends or other distributions
(other than (i) a dividend payable in shares of Common Stock, par value $1.00
per share, of the Corporation (the "Common Stock") or (ii) a subdivision of the
outstanding shares of Common Stock (by reclassification or otherwise)), declared
on the Common Stock since the immediately preceding Quarterly Dividend Payment
Date, or, with respect to the first Quarterly Dividend Payment Date, since the
first issuance of any share or fraction of a share of Series A Preferred Stock.
If the Corporation shall at any time after December 6, 1995 (the "Rights
Declaration Date") pay any dividend on Common Stock payable in shares of Common
Stock or effect a subdivision or combination of the outstanding shares of Common
Stock (by reclassification or otherwise) into a greater or lesser number of
shares of Common Stock, then in each such case the amount to which holders of
shares of Series A Preferred Stock were entitled immediately prior to such event
under clause (b) of the preceding sentence shall be adjusted by multiplying such
amount by a fraction the numerator of which is the number of shares of Common
Stock outstanding immediately after such event and the denominator of which is
the number of shares of Common Stock that were outstanding immediately prior to
such event.

         (B)   The Corporation shall declare a dividend or distribution on the
Series A Preferred Stock as provided in paragraph (A) above immediately after it
declares a dividend or distribution on the Common Stock (other than as described
in clauses (i) and (ii) of the first sentence of paragraph (A)); provided that
if no dividend or distribution shall have been declared on the Common Stock
during the period between any


   21

Quarterly Dividend Payment Date and the next subsequent Quarterly Dividend
Payment Date (or, with respect to the first Quarterly Dividend Payment Date, the
period between the first issuance of any share or fraction of a share of Series
A Preferred Stock and such first Quarterly Dividend Payment Date), a dividend of
$1.00 per share on the Series A Preferred Stock shall nevertheless be payable on
such subsequent Quarterly Dividend Payment Date.

         (C)   Dividends shall begin to accrue and be cumulative on outstanding
shares of Series A Preferred Stock from the Quarterly Dividend Payment Date next
preceding the date of issue of such shares of Series A Preferred Stock, unless
the date of issue of such shares is on or before the record date for the first
Quarterly Dividend Payment Date, in which case dividends on such shares shall
begin to accrue and be cumulative from the date of issue of such shares, or
unless the date of issue is a date after the record date for the determination
of holders of shares of Series A Preferred Stock entitled to receive a quarterly
dividend and on or before such Quarterly Dividend Payment Date, in which case
dividends shall begin to accrue and be cumulative from such Quarterly Dividend
Payment Date. Accrued but unpaid dividends shall not bear interest. Dividends
paid on shares of Series A Preferred Stock in an amount less than the total
amount of such dividends at the time accrued and payable on such shares shall be
allocated pro rata on a share-by-share basis among all such shares at the time
outstanding. The Board of Directors may fix a record date for the determination
of holders of shares of Series A Preferred Stock entitled to receive payment of
a dividend or distribution declared thereon, which record date shall not be more
than 60 days prior to the date fixed for the payment thereof.

         Section 3.   Voting Rights. In addition to any other voting rights
required by law, the holders of shares of Series A Preferred Stock shall have
the following voting rights:

         (A)   Subject to the provision for adjustment hereinafter set forth, 
each share of Series A Preferred Stock shall entitle the holder thereof to 1,000
votes on all matters submitted to a vote of stockholders of the Corporation. If
the Corporation shall at any time after the Rights Declaration Date pay any
dividend on Common Stock payable in shares of Common Stock or effect a
subdivision or combination of the outstanding shares of Common Stock (by
reclassification or otherwise) into a greater or lesser number of


   22

shares of Common Stock, then in each such case the number of votes per share to
which holders of shares of Series A Preferred Stock were entitled immediately
prior to such event shall be adjusted by multiplying such number by a fraction
the numerator of which is the number of shares of Common Stock outstanding
immediately after such event and the denominator of which is the number of
shares of Common Stock that were outstanding immediately prior to such event.

         (B)   Except as otherwise provided herein or by law, the holders of
shares of Series A Preferred Stock and the holders of shares of Common Stock
shall vote together as a single class on all matters submitted to a vote of
stockholders of the Corporation.

         (C)   (i)   If at any time dividends on any Series A Preferred Stock 
shall be in arrears in an amount equal to six quarterly dividends thereon, the
occurrence of such contingency shall mark the beginning of a period (herein
called a "default period") which shall extend until such time when all accrued
and unpaid dividends for all previous quarterly dividend periods and for the
current quarterly dividend period on all shares of Series A Preferred Stock then
outstanding shall have been declared and paid or set apart for payment. During
each default period, all holders of Preferred Stock and any other series of
Preferred Stock then entitled as a class to elect directors, voting together as
a single class, irrespective of series, shall have the right to elect two
Directors.

         (ii)  During any default period, such voting right of the holders of
Series A Preferred Stock may be exercised initially at a special meeting called
pursuant to subparagraph (iii) of this Section 3(C) or at any annual meeting of
stockholders, and thereafter at annual meetings of stockholders, provided that
neither such voting right nor the right of the holders of any other series of
Preferred Stock, if any, to increase, in certain cases, the authorized number of
Directors shall be exercised unless the holders of 10% in number of shares of
Preferred Stock outstanding shall be present in person or by proxy. The absence
of a quorum of holders of Common Stock shall not affect the exercise by holders
of Preferred Stock of such voting right. At any meeting at which holders of
Preferred Stock shall exercise such voting right initially during an existing
default period, they shall have the right, voting as a class, to elect Directors
to fill such vacancies, if any, in the Board of Directors as may then exist up


   23

to two Directors or, if such right is exercised at an annual meeting, to elect
two Directors. If the number which may be so elected at any special meeting does
not amount to the required number, the holders of the Preferred Stock shall have
the right to make such increase in the number of Directors as shall be necessary
to permit the election by them of the required number. After the holders of the
Preferred Stock shall have exercised their right to elect Directors in any
default period and during the continuance of such period, the number of
Directors shall not be increased or decreased except by vote of the holders of
Preferred Stock as herein provided or pursuant to the rights of any equity
securities ranking senior to or pari passu with the Series A Preferred Stock.

         (iii) Unless the holders of Preferred Stock shall, during an existing
default period, have previously exercised their right to elect Directors, the
Board of Directors may order, or any stockholder or stockholders owning in the
aggregate not less than 10% of the total number of shares of Preferred Stock
outstanding, irrespective of series, may request, the calling of special meeting
of holders of Preferred Stock, which meeting shall thereupon be called by the
President, a Vice President or the Secretary of the Corporation. Notice of such
meeting and of any annual meeting at which holders of Preferred Stock are
entitled to vote pursuant to this paragraph (C)(iii) shall be given to each
holder of record of Preferred Stock by mailing a copy of such notice to him at
his last address as the same appears on the books of the Corporation. Such
meeting shall be called for a time not earlier than 20 days and not later than
60 days after such order or request or in default of the calling of such meeting
within 60 days after such order or request, such meeting may be called on
similar notice by any stockholder or stockholders owning in the aggregate not
less than 10% of the total number of shares of Preferred Stock outstanding,
irrespective of series. Notwithstanding the provisions of this paragraph
(C)(iii), no such special meeting shall be called during the period within 60
days immediately preceding the date fixed for the next annual meeting of
stockholders.

         (iv)  In any default period, the holders of Common Stock, and other
classes of stock of the Corporation if applicable, shall continue to be entitled
to elect the whole number of Directors until the holders of Preferred Stock
shall have exercised their right to elect two Directors voting as a class, after
the exercise of which right (x) the Directors so elected by the holders of


   24

Preferred Stock shall continue in office until their successors shall have been
elected by such holders or until the expiration of the default period, and (y)
any vacancy in the Board of Directors may (except as provided in paragraph
(C)(ii) of this Section 3) be filled by vote of a majority of the remaining
Directors theretofore elected by the holders of the class of stock which elected
the Director whose office shall have become vacant. References in this paragraph
(C) to Directors elected by the holders of a particular class of stock shall
include Directors elected by such Directors to fill vacancies as provided in
clause (y) of the foregoing sentence.

         (v)   Immediately upon the expiration of a default period, (x) the 
right of the holders of Preferred Stock as a class to elect Directors shall
cease, (y) the term of any Directors elected by the holders of Preferred Stock
as a class shall terminate, and (z) the number of Directors shall be such number
as may be provided for in the certificate of incorporation or bylaws
irrespective of any increase made pursuant to the provisions of paragraph
(C)(ii) of this Section 3 (such number being subject, however, to change
thereafter in any manner provided by law or in the certificate of incorporation
or bylaws). Any vacancies in the Board of Directors effected by the provisions
of clauses (y) and (z) in the preceding sentence may be filled by a majority of
the remaining Directors.

         (D)   The Certificate of Incorporation of the Corporation shall not be
amended in any manner (whether by merger or otherwise) so as to adversely affect
the powers, preferences or special rights of the Series A Preferred Stock
without the affirmative vote of the holders of a majority of the outstanding
shares of Series A Preferred Stock, voting separately as a class.

         (E)   Except as otherwise provided herein, holders of Series A 
Preferred Stock shall have no special voting rights, and their consent shall not
be required for taking any corporate action.

         Section 4.   Certain Restrictions.

         (A)   Whenever quarterly dividends or other dividends or distributions
payable on the Series A Preferred Stock as provided in Section 2 are in arrears,
thereafter and until all accrued and unpaid dividends and distributions, whether
or not declared, on


   25

outstanding shares of Series A Preferred Stock shall have been paid in full, the
Corporation shall not:

         (i)    declare or pay dividends on, or make any other distributions on,
     any shares of stock ranking junior (either as to dividends or upon
     liquidation, dissolution or winding up) to the Series A Preferred Stock;

         (ii)   declare or pay dividends on, or make any other distributions 
     on, any shares of stock ranking on a parity (either as to dividends or upon
     liquidation, dissolution or winding up) with the Series A Preferred Stock,
     except dividends paid ratably on the Series A Preferred Stock and all such
     other parity stock on which dividends are payable or in arrears in
     proportion to the total amounts to which the holders of all such shares are
     then entitled;

         (iii)  redeem, purchase or otherwise acquire for value any shares of
     stock ranking junior (either as to dividends or upon liquidation,
     dissolution or winding up) to the Series A Preferred Stock; provided that
     the Corporation may at any time redeem, purchase or otherwise acquire
     shares of any such junior stock in exchange for shares of stock of the
     Corporation ranking junior (as to dividends and upon dissolution,
     liquidation or winding up) to the Series A Preferred Stock; or

         (iv)   redeem, purchase or otherwise acquire for value any shares of
     Series A Preferred Stock, or any shares of stock ranking on a parity
     (either as to dividends or upon liquidation, dissolution or winding up)
     with the Series A Preferred Stock, except in accordance with a purchase
     offer made in writing or by publication (as determined by the Board of
     Directors) to all holders of Series A Preferred Stock and all such other
     parity stock upon such terms as the Board of Directors, after consideration
     of the respective annual dividend rates and other relative rights and
     preferences of the respective series and classes, shall determine in good
     faith will result in fair and equitable treatment among the respective
     series or classes.

         (B)   The Corporation shall not permit any subsidiary of the 
Corporation to purchase or otherwise acquire for value any


   26

shares of stock of the Corporation unless the Corporation could, under paragraph
(A) of this Section 4, purchase or otherwise acquire such shares at such time
and in such manner.

         Section 5.   Reacquired Shares. Any shares of Series A Preferred Stock
redeemed, purchased or otherwise acquired by the Corporation in any manner
whatsoever shall be retired and canceled promptly after the acquisition thereof.
All such shares shall upon their cancellation become authorized but unissued
shares of Preferred Stock without designation as to series and may be reissued
as part of a new series of Preferred Stock to be created by resolution or
resolutions of the Board of Directors as permitted by the Certificate of
Incorporation or as otherwise permitted under Delaware Law.

         Section 6.   Liquidation, Dissolution or Winding Up. Upon any
liquidation, dissolution or winding up of the Corporation, no distribution shall
be made (1) to the holders of shares of stock ranking junior (either as to
dividends or upon liquidation, dissolution or winding up) to the Series A
Preferred Stock unless, prior thereto, the holders of shares of Series A
Preferred Stock shall have received $1.00 per share, plus an amount equal to
accrued and unpaid dividends and distributions thereon, whether or not declared,
to the date of such payment; provided that the holders of shares of Series A
Preferred Stock shall be entitled to receive an aggregate amount per share,
subject to the provision for adjustment hereinafter set forth, equal to 1,000
times the aggregate amount to be distributed per share to holders of Common
Stock, or (2) to the holders of stock ranking on a parity (either as to
dividends or upon liquidation, dissolution or winding up) with the Series A
Preferred Stock, except distributions made ratably on the Series A Preferred
Stock and all such other parity stock in proportion to the total amounts to
which the holders of all such shares are entitled upon such liquidation,
dissolution or winding up. If the Corporation shall at any time after the Rights
Declaration Date pay any dividend on Common Stock payable in shares of Common
Stock or effect a subdivision or combination of the outstanding shares of Common
Stock (by reclassification or otherwise) into a greater or lesser number of
shares of Common Stock, then in each such case the aggregate amount to which
holders of shares of Series A Preferred Stock were entitled immediately prior to
such event under the proviso in clause (1) of the preceding sentence shall be
adjusted by multiplying such amount by


   27

a fraction the numerator of which is the number of shares of Common Stock
outstanding immediately after such event and the denominator of which is the
number of shares of Common Stock that were outstanding immediately prior to such
event.

         Section 7.   Consolidation, Merger, etc. If the Corporation shall enter
into any consolidation, merger, combination or other transaction in which the
shares of Common Stock are exchanged for or changed into other stock or
securities, cash or any other property, then in any such case the shares of
Series A Preferred Stock shall at the same time be similarly exchanged for or
changed into an amount per share, subject to the provision for adjustment
hereinafter set forth, equal to 1,000 times the aggregate amount of stock,
securities, cash or any other property, as the case may be, into which or for
which each share of Common Stock is changed or exchanged. If the Corporation
shall at any time after the Rights Declaration Date pay any dividend on Common
Stock payable in shares of Common Stock or effect a subdivision or combination
of the outstanding shares of Common Stock (by reclassification or otherwise)
into a greater or lesser number of shares of Common Stock, then in each such
case the amount set forth in the preceding sentence with respect to the exchange
or change of shares of Series A Preferred Stock shall be adjusted by multiplying
such amount by a fraction the numerator of which is the number of shares of
Common Stock outstanding immediately after such event and the denominator of
which is the number of shares of Common Stock that were outstanding immediately
prior to such event.

         Section 8.   No Redemption. The Series A Preferred Stock shall not be
redeemable.

         Section 9.   Rank. The Series A Preferred Stock shall rank junior (as
to dividends and upon liquidation, dissolution and winding up) to all other
series of the Corporation's preferred stock except any series that specifically
provides that such series shall rank junior to the Series A Preferred Stock.

         Section 10.  Fractional Shares. Series A Preferred Stock may be issued
in fractions of a share which shall entitle the holder, in proportion to such
holder's fractional shares, to exercise voting rights, receive dividends,
participate in distributions and to have the benefit of all other rights of
holders of Series A Preferred Stock.


   28

         IN WITNESS WHEREOF, we have executed and subscribed this Certificate
this 12th day of December, 1995.


                                      /s/Richard G. Mosteller             
                                      ------------------------------------
                                      Richard G. Mosteller
                                      Senior Vice President - Finance
                                      Masco Corporation
Attest:                       

/s/Eugene A. Gargaro, Jr.
- -------------------------
Eugene A. Gargaro, Jr.
Vice President and Secretary
Masco Corporation


   29

                              CERTIFICATE OF MERGER
                                       OF
                                  LA GARD, INC.
                                      INTO
                                MASCO CORPORATION

     MASCO Corporation, a coropration organized and existing under and by virtue
of the General Corporation Law of the State of Delaware (the "GCL"), certifies
that:

     FIRST:    The name and state of incorporation of each of the constituent
corporations are as follows:

                                             State of
          Name                               Incorporation
          ----                               -------------

La Gard, Inc. ("La Gard")                    California
MASCO Corporation ("Masco")                  Delaware

     SECOND:   An Agreement and Plan of Reorganization dated February 21, 1997
(the "Agreement"), among Masco, La Gard and the Shareholders of La Gard, with
respect to, among other things, the merger of La Gard into Masco (the "Merger"),
has been approved, adopted, certified, executed and acknowledged by each of the
constituent corporations in accordance with the requirements of Section 252 of
the GCL.

     THIRD:   That the name of the surviving corporation of the Merger is Masco
Corporation, a Delaware corporation.

     FOURTH:  That the Restated Certificate of Incorporation of Masco
Corporation, a Delaware corporation which is surviving the merger, shall be the
Certificate of Incorporation of the surviving corporation.

     FIFTH:   The executed Agreement is on file at the principal place of 
business of the surviving corporation 21001 Van Born Road, Taylor, Michigan
48180.

     SIXTH:   A copy of the Agreement will be furnished by the surviving
corporation, on request and without cost, to any stockholder of Masco and La
Gard.

     SEVENTH: The authorized capital stock of LaGard, Inc., the foreign
corporation which is a party to the merger is 1,000,000 shares of Common Stock,
no par value, of which 134,000 shares are issued, outstanding and owned by the
Stockholders.




   30

     EIGHTH:  The Merger has been approved by the Shareholders of LaGard, Inc.

     This Certificate of Merger shall be effective as of filing with the
Secretary of State of Delaware.

                                            MASCO CORPORATION


                                            By /s/ Richard G. Mosteller   
                                               -------------------------
                                               Richard G. Mosteller
                                               Vice President


ATTEST:


By /s/ Eugene A. Gargaro, Jr.  
   ---------------------------
    Eugene A. Gargaro, Jr.




   31

                              CERTIFICATE OF MERGER
                                       OF
                            TEXWOOD INDUSTRIES, INC.
                                      INTO
                                MASCO CORPORATION

     Masco Corporation, a corporation organized and existing under and by virtue
of the General Corporation Law of the State of Delaware (the "GCL"), certifies
that:

     FIRST:    The name and state of incorporation of each of the constituent
corporations are as follows:

                                               State of 
            Name                               Incorporation
            ----                               -------------

            Texwood Industries, Inc.           Texas

            Masco Corporation                  Delaware

          
     SECOND:   An Agreement and Plan of Reorganization dated July 24, 1997 (the
"Agreement") among Masco Corporation, Texwood Industries, Inc. and the
shareholders of Texwood Industries, Inc., with respect to, among other things,
the merger of Texwood Industries, Inc. into Masco Corporation (the "Merger"),
has been approved, adopted, certified, executed and acknowledged by each of the
constituent corporations in accordance with the requirements of Section 252 of
the GCL.

     THIRD:    That the name of the surviving corporation of the Merger is Masco
Corporation, a Delaware corporation.

     FOURTH:   That the Restated Certificate of Incorporation of Masco
Corporation, a Delaware corporation which is surviving the merger, shall be the
Certificate of Incorporation of the surviving corporation.

     FIFTH:    The executed Agreement is on file at the principal place of 
business of the surviving corporation, the address of which is 21001 Van Born
Road, Taylor, Michigan 48180.

     SIXTH:    A copy of the Agreement will be furnished by the surviving
corporation, on request and without cost, to any stockholder of either
constituent corporation.

     SEVENTH:  The authorized capital stock of Texwood Industries, Inc., the
foreign corporation which is a party to the Merger, is 100,000 shares of common
stock, $1 par value.



   32

     EIGHTH:   The Merger shall become effective upon filing the Certificate of
Merger with the Secretary of State of Delaware and the Articles of Merger with
the Secretary of State of Texas.

     IN WITNESS WHEREOF, Masco Corporation has caused this Certificate of Merger
to be signed by a Vice President and attested by its Secretary this 25th day of
July, 1997.

                                                MASCO CORPORATION



                                                By /s/ John R. Leekley
                                                   -------------------
                                                   John R. Leekley
                                                   Senior Vice President

ATTEST:



By /s/ Eugene A. Gargaro, Jr.
  --------------------------
  Eugene A. Gargaro,Jr.
  Secretary


   33

                         CERTIFICATE OF AMENDMENT TO THE
                          CERTIFICATE OF INCORPORATION
                              OF MASCO CORPORATION


     MASCO CORPORATION, a corporation organized and existing under the laws of
the State of Delaware (the "Company"), does hereby certify:

     FIRST: That the Board of Directors of the Company, by consent resolution
dated April 20, 1998, adopted a resolution declaring advisable and proposing for
stockholder approval an amendment to the Company's Certificate of Incorporation
as follows:

            The first two paragraphs of ARTICLE FOURTH shall be amended to read
     as follows:

            "FOURTH: The total number of shares of stock the Corporation shall
     have authority to issue is nine hundred one million (901,000,000) shares.

            Nine hundred million (900,000,000) of such shares shall consist of
     common shares, par value one dollar ($1.00) per share, and one million
     (1,000,000) of such shares shall consist of preferred shares, par value one
     dollar ($1.00) per share."

     SECOND: That the amendment to ARTICLE FOURTH of the Company's Certificate
of Incorporation was approved by a majority of the issued and outstanding shares
of common stock entitled to vote thereon in accordance with Section 242 of the
General Corporation Law of Delaware.

     IN WITNESS WHEREOF, MASCO CORPORATION has caused its seal to be affixed and
the Certificate to be signed by Richard A. Manoogian, its Chairman of the Board,
and attested by Eugene A. Gargaro, Jr., its Secretary, this 20th day of May,
1998.

                                      MASCO CORPORATION
                                      
                                      
[Corporate Seal]                      By: 
                                         -------------------------------------
                                         Richard A. Manoogian, Chairman of the 
                                         Board
                                                                           
Attest:

By: 
   ------------------------------------
   Eugene A. Gargaro, Jr., Secretary



   STATE OF MICHIGAN  )
                      ) ss.
   COUNTY OF WAYNE    )

   
     I,_________________, a Notary Public do hereby certify that on this 20th
day of May, 1998, personally appeared before me Richard A. Manoogian, who being
by me first duly sworn, declared that he is the Chairman of the Board of Masco
Corporation, that he signed the foregoing document as the act and deed of said
corporation, and that the statements therein contained are true.

My commission expires:_________________                ____________________