SPECIAL POWER OF ATTORNEY

     The undersigned constitutes and appoints Paul T. Stecko, Richard B. West
and Samuel M. Mencoff, and each of them, his true and lawful attorney-in-fact
and agent with full power of substitution and resubstitution, for him and in
his name, place, and stead, in any and all capacities, to sign the Annual
Report on Form 10-K for the fiscal year ended December 31, 2000, for filing
with the Securities and Exchange Commission by Packaging Corporation of
America, a Delaware corporation, together with any and all amendments to such
Form 10-K, and to file the same with all exhibits thereto, and all documents in
connection therewith, with the Securities and Exchange Commission, granting
to such attorneys-in-fact and agents, and each of them, full power and
authority to do and perform each and every act and thing requisite and
necessary to be done in and about the premises, as fully and to all intents
and purposes as he might or could do in person, hereby ratifying and
confirming all that such attorneys-in-fact and agents, or each of them, may
lawfully do or cause to be done by virtue hereof.

     DATED:         3/20           , 2001
           ------------------------

         /s/ THOMAS S. SOULELES
     ---------------------------------
     Thomas S. Souleles





                           SPECIAL POWER OF ATTORNEY

     The undersigned constitutes and appoints Paul T. Stecko, Richard B. West
and Samuel M. Mencoff, and each of them, his true and lawful attorney-in-fact
and agent with full power of substitution and resubstitution, for him and in
his name, place, and stead, in any and all capacities, to sign the Annual
Report on Form 10-K for the fiscal year ended December 31, 2000, for filing
with the Securities and Exchange Commission by Packaging Corporation of
America, a Delaware corporation, together with any and all amendments to such
Form 10-K, and to file the same with all exhibits thereto, and all documents in
connection therewith, with the Securities and Exchange Commission, granting
to such attorneys-in-fact and agents, and each of them, full power and
authority to do and perform each and every act and thing requisite and
necessary to be done in and about the premises, as fully and to all intents
and purposes as he might or could do in person, hereby ratifying and
confirming all that such attorneys-in-fact and agents, or each of them, may
lawfully do or cause to be done by virtue hereof.

     DATED:         3/20           , 2001
           ------------------------

         /s/ PAUL T. STECKO
     ---------------------------------
     Paul T. Stecko





                           SPECIAL POWER OF ATTORNEY

     The undersigned constitutes and appoints Paul T. Stecko, Richard B. West
and Samuel M. Mencoff, and each of them, his true and lawful attorney-in-fact
and agent with full power of substitution and resubstitution, for him and in
his name, place, and stead, in any and all capacities, to sign the Annual
Report on Form 10-K for the fiscal year ended December 31, 2000, for filing
with the Securities and Exchange Commission by Packaging Corporation of
America, a Delaware corporation, together with any and all amendments to such
Form 10-K, and to file the same with all exhibits thereto, and all documents in
connection therewith, with the Securities and Exchange Commission, granting
to such attorneys-in-fact and agents, and each of them, full power and
authority to do and perform each and every act and thing requisite and
necessary to be done in and about the premises, as fully and to all intents
and purposes as he might or could do in person, hereby ratifying and
confirming all that such attorneys-in-fact and agents, or each of them, may
lawfully do or cause to be done by virtue hereof.

     DATED:         3/20           , 2001
           ------------------------

         /s/ RICHARD B. WEST
     ---------------------------------
     Richard B. West





                           SPECIAL POWER OF ATTORNEY

     The undersigned constitutes and appoints Paul T. Stecko, Richard B. West
and Samuel M. Mencoff, and each of them, his true and lawful attorney-in-fact
and agent with full power of substitution and resubstitution, for him and in
his name, place, and stead, in any and all capacities, to sign the Annual
Report on Form 10-K for the fiscal year ended December 31, 2000, for filing
with the Securities and Exchange Commission by Packaging Corporation of
America, a Delaware corporation, together with any and all amendments to such
Form 10-K, and to file the same with all exhibits thereto, and all documents in
connection therewith, with the Securities and Exchange Commission, granting
to such attorneys-in-fact and agents, and each of them, full power and
authority to do and perform each and every act and thing requisite and
necessary to be done in and about the premises, as fully and to all intents
and purposes as he might or could do in person, hereby ratifying and
confirming all that such attorneys-in-fact and agents, or each of them, may
lawfully do or cause to be done by virtue hereof.

     DATED:         3/3            , 2001
           ------------------------

         /s/ HENRY F. FRIGON
     ---------------------------------
     Henry F. Frigon





                           SPECIAL POWER OF ATTORNEY

     The undersigned constitutes and appoints Paul T. Stecko, Richard B. West
and Samuel M. Mencoff, and each of them, his true and lawful attorney-in-fact
and agent with full power of substitution and resubstitution, for him and in
his name, place, and stead, in any and all capacities, to sign the Annual
Report on Form 10-K for the fiscal year ended December 31, 2000, for filing
with the Securities and Exchange Commission by Packaging Corporation of
America, a Delaware corporation, together with any and all amendments to such
Form 10-K, and to file the same with all exhibits thereto, and all documents in
connection therewith, with the Securities and Exchange Commission, granting
to such attorneys-in-fact and agents, and each of them, full power and
authority to do and perform each and every act and thing requisite and
necessary to be done in and about the premises, as fully and to all intents
and purposes as he might or could do in person, hereby ratifying and
confirming all that such attorneys-in-fact and agents, or each of them, may
lawfully do or cause to be done by virtue hereof.

     DATED:         3/20           , 2001
           ------------------------

         /s/ LOUIS A. HOLLAND
     ---------------------------------
     Louis A. Holland





                           SPECIAL POWER OF ATTORNEY

     The undersigned constitutes and appoints Paul T. Stecko, Richard B. West
and Samuel M. Mencoff, and each of them, his true and lawful attorney-in-fact
and agent with full power of substitution and resubstitution, for him and in
his name, place, and stead, in any and all capacities, to sign the Annual
Report on Form 10-K for the fiscal year ended December 31, 2000, for filing
with the Securities and Exchange Commission by Packaging Corporation of
America, a Delaware corporation, together with any and all amendments to such
Form 10-K, and to file the same with all exhibits thereto, and all documents in
connection therewith, with the Securities and Exchange Commission, granting
to such attorneys-in-fact and agents, and each of them, full power and
authority to do and perform each and every act and thing requisite and
necessary to be done in and about the premises, as fully and to all intents
and purposes as he might or could do in person, hereby ratifying and
confirming all that such attorneys-in-fact and agents, or each of them, may
lawfully do or cause to be done by virtue hereof.

     DATED:         3/20           , 2001
           ------------------------

         /s/ JUSTIN S. HUSCHER
     ---------------------------------
     Justin S. Huscher





                           SPECIAL POWER OF ATTORNEY

     The undersigned constitutes and appoints Paul T. Stecko, Richard B. West
and Samuel M. Mencoff, and each of them, his true and lawful attorney-in-fact
and agent with full power of substitution and resubstitution, for him and in
his name, place, and stead, in any and all capacities, to sign the Annual
Report on Form 10-K for the fiscal year ended December 31, 2000, for filing
with the Securities and Exchange Commission by Packaging Corporation of
America, a Delaware corporation, together with any and all amendments to such
Form 10-K, and to file the same with all exhibits thereto, and all documents in
connection therewith, with the Securities and Exchange Commission, granting
to such attorneys-in-fact and agents, and each of them, full power and
authority to do and perform each and every act and thing requisite and
necessary to be done in and about the premises, as fully and to all intents
and purposes as he might or could do in person, hereby ratifying and
confirming all that such attorneys-in-fact and agents, or each of them, may
lawfully do or cause to be done by virtue hereof.

     DATED:         3/20           , 2001
           ------------------------

         /s/ SAMUEL M. MENCOFF
     ---------------------------------
     Samuel M. Mencoff





                           SPECIAL POWER OF ATTORNEY

     The undersigned constitutes and appoints Paul T. Stecko, Richard B. West
and Samuel M. Mencoff, and each of them, his true and lawful attorney-in-fact
and agent with full power of substitution and resubstitution, for him and in
his name, place, and stead, in any and all capacities, to sign the Annual
Report on Form 10-K for the fiscal year ended December 31, 2000, for filing
with the Securities and Exchange Commission by Packaging Corporation of
America, a Delaware corporation, together with any and all amendments to such
Form 10-K, and to file the same with all exhibits thereto, and all documents in
connection therewith, with the Securities and Exchange Commission, granting
to such attorneys-in-fact and agents, and each of them, full power and
authority to do and perform each and every act and thing requisite and
necessary to be done in and about the premises, as fully and to all intents
and purposes as he might or could do in person, hereby ratifying and
confirming all that such attorneys-in-fact and agents, or each of them, may
lawfully do or cause to be done by virtue hereof.

     DATED:         3/19           , 2001
           ------------------------

         /s/ RAYFORD K. WILLIAMSON
     ---------------------------------
     Rayford K. Williamson