I once met Douglas Firplanks JR. . . . an affable chap and most well rounded in usage! Heritage Salvage has recycled bleacher boards from different schools, salvaged vinegar tanks, joists, flooring, timbers, pillars and posts. Lots of used old growth fir, 1x, 2x, 3x to beams and structural sizes.
Douglas fir shiplap is a most versatile sustainable wood. Recycled shiplap can be used for flooring, wainscoting, cabinets, ceiling treatments, shelving and more.