3 in x 3 in lumber July 8, 2019 16 32 64 128 3 4 x 3 lumber 3 x 3 lumber actual size 3 x 3 lumber menards 3 x 3 maple lumber 3 x 3 oak lumber 3 x 3 treated lumber 3 8 x 3 lumber 3 iks 3 x 3 x 3 x 3 x