4 6 x 8 5 July 8, 2019 16 32 64 128 1 4 6 x 5 8 8 4 6 x 5 3 4 1 6 х 8 2 5 5 4 x 6 x 8 deck boards 4 6 x 4 4 8 4 3x 5 1 6 72 x 4 8 5 137 6 4 x 8 0 5 6 4 х 8 0 5 4 x 6 5 8 direct vent 4 x 6 5 8 direct vent pipe 4 x 6 5 8 vent pipe Duravent 4 x 6 5 8 6 4 8 x 4 5 7 6 x 8 )= 5x 4 6 4 8 x 4 5 7 simplify if possible
