Exhibit 32


                    CERTIFICATION OF CEO AND CFO PURSUANT TO
                             18 U.S.C. SECTION 1350,
                             AS ADOPTED PURSUANT TO
                  SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002


In connection  with the Annual Report on Form 10-K of Public Storage  Properties
IV, Ltd. (the  "Partnership") for the year ended December 31, 2005 as filed with
the Securities and Exchange Commission on the date hereof (the "Report"), Ronald
L. Havner,  Jr., as Chief Executive  Officer of Public  Storage,  Inc., and John
Reyes,  as  Chief  Financial  Officer  of  Public  Storage,  Inc.,  each  hereby
certifies,  pursuant to 18 U.S.C.  ss.1350, as adopted pursuant to ss.906 of the
Sarbanes-Oxley Act of 2002, that:


(1)  The Report fully  complies  with the  requirements  of Section 13(a) of the
     Securities Exchange Act of 1934; and

(2)  The information  contained in the Report fairly  presents,  in all material
     respects,  the  financial  condition  and  results  of  operations  of  the
     Partnership.

/s/  Ronald L. Havner, Jr.
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Name:    Ronald L. Havner, Jr.
Title:   Chief Executive Officer and President of Public Storage, Inc.,
         Corporate General Partner
Date:    March 31, 2006

/s/  John Reyes
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Name:    John Reyes
Title:   Chief Financial Officer of Public Storage, Inc.,
         Corporate General Partner
Date:    March 31, 2006



This  certification  accompanies  the  Report  pursuant  to  Section  906 of the
Sarbanes-Oxley  Act of 2002 and shall not,  except to the extent required by the
Sarbanes-Oxley  Act of 2002, be deemed filed by the  Partnership for purposes of
Section 18 of the Securities Exchange Act of 1934, as amended.