3/4 in. x 4 ft. x 8 ft. AB Marine Grade Pressure-Treated Fir Plywood .
. 3/4 in. x 4 ft. x 8 ft. AB Marine Grade Pressure-Treated Fir Plywood 154459. . This pressure-treated plywood is a great choice for water applications, such as docks, ponds, boardwalks and more. ... I used it on the deck of my pontoon boat. ... I needed four sheets cut to dimension because I can't fit 4x8' sheets in my SUV.