Exhibit 99.1

JOINT FILING AGREEMENT

This will confirm the agreement among the undersigned that the Schedule 13D filed on or about this date and any amendments thereto with respect to beneficial ownership by the undersigned of the common shares, no par value of West Fraser Timber Co. Ltd. is being filed on behalf of each of the undersigned in accordance with Rule 13d-1(k)(1) under the Securities Exchange Act of 1934, as amended.

February 2, 2021	BROOKFIELD ASSET MANAGEMENT INC.
	By:	/s/ Kathy Sarpash
		Name: Kathy Sarpash
		Title: Senior Vice President
	BROOKFIELD INVESTMENTS CORPORATION
	By:	/s/ Thomas Corbett
		Name: Thomas Corbett
		Title: Vice President and Chief Financial Officer
	BROOKFIELD PRIVATE EQUITY GROUP HOLDINGS LP, by its general partner, BROOKFIELD PRIVATE EQUITY INC.
	By:	/s/ A.J. Silber
		Name: A.J. Silber
		Title: Director
	BPE OSB INVESTMENTS HOLDING LP, by its general partner, BROOKFIELD PRIVATE EQUITY INC.
	By:	/s/ A.J. Silber
		Name: A.J. Silber
		Title: Director
	BROOKFIELD CAPITAL PARTNERS II L.P., by its general partner, BROOKFIELD CAPITAL PARTNERS II GP L.P., by its general partner, BROOKFIELD CAPITAL PARTNERS LTD.
	By:	/s/ A.J. Silber
		Name: A.J. Silber
		Title: Chairman of the Board
	BROOKFIELD CAPITAL PARTNERS LIMITED
	By:	/s/ A.J. Silber
	Name: A.J. Silber
	Title: Chairman of the Board
	BROOKFIELD PRIVATE EQUITY INC.
	By:	/s/ A.J. Silber
		Name: A.J. Silber
		Title: Director