Related Post: 1 3 8 X 3 1 3 8 X 3 4 Bearing 3x 1 )( 8x 3 7 1 3 8x 3 1 4x (- 3 )+ 8x (- 3 1 3 8 X 1 3 8 Wood 1 3 8 X 1 3 8 Lumber 1 3 8 X 2 3 X 1 3 8x 3 2x 1 8 X 3 )=- 3 2