4 x 6 x 20 treated July 8, 2019 16 32 64 128 4 x 6 x 20 treated lumber 5 4 x 6 x 20 pressure treated deck boards 4 x 6 x 20 pressure treated lumber 5 4 x 6 x 20 treated deck boards 4 x 6 x 20 pressure treated 5 4 x 6 x 20 pressure treated lumber 5 4 x 6 x 20 pressure treated 4 + 4 = 6
