EXHIBIT 32.2

CERTIFICATION PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 18
U.S.C. SECTION 1350

         In connection with the Annual Report on Form 10-K for the year ended
         December 31, 2005 of P. H. Glatfelter Company (the "Company") as filed
         with the Securities and Exchange Commission on the date hereof (the
         "Report"), I, John C. van Roden, Jr., Senior Vice President and Chief
         Financial Officer of the Company, certify to the best of my knowledge,
         pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, 18 U.S.C.
         Section 1350, that:

1)    The Report fully complies with the requirements of section 13(a) or 15(d)
      of the Securities Exchange Act of 1934, as amended; and

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

A signed original of this written statement required by Section 906 has been
provided to Glatfelter and will be retained by Glatfelter and furnished to the
Securities and Exchange Commission or its staff upon request.

                Date: March 13, 2006       By:  /s/ John C. van Roden, Jr.
                                                --------------------------------
                                                    John C. van Roden, Jr.
                                                    Executive Vice President and
                                                       Chief Financial Officer