SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 ------------------------- FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of: February 2005 Commission File No.: 1-11796 MASONITE INTERNATIONAL CORPORATION (Name of registrant) 1600 Britannia Road East Mississauga, Ontario L4W 1J2 (Address of Principal Executive Offices) PREMDOR INC. (Former Name of Registrant) Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F: Form 20-F [ ] Form 40-F [X] Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1): Yes [ ] No [X] Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7): Yes [ ] No [X] Indicate by check mark whether the registrant by furnishing the information contained in this Form is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934: Yes [ ] No [X] If "Yes" is marked, indicate the file number assigned to the registrant in connection with Rule 12g3-2(b): N/A SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized. MASONITE INTERNATIONAL CORPORATION Date: February 22, 2005 By: /s/ Harley Ulster --------------------------- Name: Harley Ulster Title: Executive Vice-President and Secretary EXHIBIT INDEX EXHIBIT DESCRIPTION OF EXHIBIT ------- ---------------------- 99.1 Material Change Report dated February 22, 2005 99.2 Second Amended and Restated Combination Agreement dated February 17, 2005