UNITED STATES 
SECURITIES AND EXCHANGE COMMISSION 
Washington, D.C. 20549 
 
 
FORM 6-K 
 
 
REPORT OF FOREIGN PRIVATE ISSUER 
PURSUANT TO RULE 13a-16 OR 15d-16 
UNDER THE SECURITIES EXCHANGE ACT OF 1934 
For the month of September 2025 
Commission File Number: 001-39974 
 
 
 
 
 
 
 WEST FRASER TIMBER CO. LTD. 
(Exact name of Registrant, as specified in its charter) 
 
 
1500 - 885 West Georgia Street 
Vancouver, British Columbia 
Canada, V6C 3E8 
 Tel:
(604) 895-2700 
 (Address and Telephone Number of Registrant’s Principal Executive
Offices) 
  
 
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 ☒ 
 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): ☐ 
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): ☐ 
 
 
 
 
 
 EXHIBIT INDEX 
 
|  |  |  | 
| Exhibit |  | Description | 
| 99.1 |  | News release dated September 10, 2025 re: West Fraser Declares Dividend | 
 
 
 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. 
  
|  | 
| Date: September 10, 2025 | 
|  | 
| WEST FRASER TIMBER CO. LTD. | 
|  | 
| /s/ Christopher A. Virostek | 
| Christopher A. Virostek Senior Vice-President,
Finance and Chief Financial Officer |