The Bibler operation is about 130 kilometres from a sawmill that the Vancouver-based company recently acquired in Mansfield, Ark. and will be the fourth West Fraser operation in that state.
The Arkansas acquisitions are part of West Fraser's plans to expand in the U.S. South and Western Canada, where it has its base.
Financial details of the Bibler deal were not released.
West Fraser says the Bibler Brothers sawmill produced about 136 million board-feet of lumber last year. The deal is expected to close before the end of April.
West Fraser also said Thursday it has closed its purchase of the Buchanan Lumber sawmill in Alberta and plans to expand its annual capacity to about 175 million board feet from about 110 million.