textured high density plastic board 3/4 whosesaler it StarBoard - Marine Board HDPE - Plastics. it StarBoard is easy to fabricate with standard woodworit tools and requires little or no finiHDPEng. Sizes: 54" x 96" full sheets or custom cut-to-size. Thicknesses: ¼”, 3/8”, ½”, ¾”, 1”, 1½”. lors: Black, Charcoal Gray, Dolphin Gray