Paxton doesn't stock any fir timbers. They specialize in hardwood lumber, hardwood sheet stock, custom moulding, mdf, particle board and TFL (melamine)
They don't have dimensional Lumber. But you can call and ask. They can order the length and have it gang ripped to the width. As for Douglas fir, I'm not quite sure. They might have it hidden away somewhere in there. For getting 12 in wide boards, you might have to settle for getting a really long board and cutting it to 4 feet. Most boards that short are very thin.
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