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  Quarterly  Report  on Form  10-Q of  Public  Storage
 Properties IV, Ltd. (the "Partnership") for the quarterly period ended June 30,
 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.,  corporate general partner,  and John Reyes, as Chief Financial
 Officer  of Public  Storage,  Inc.,  corporate  general  partner,  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.
- ----------------------------------
Name:    Ronald L. Havner, Jr.
Title:   Chief Executive Officer of Public Storage, Inc.,
         Corporate General Partner
Date:    August 12, 2005

/s/ John Reyes
- ----------------------------------
Name:    John Reyes
Title:   Chief Financial Officer of Public Storage, Inc.,
         Corporate General Partner
Date:    August 12, 2005