textured hdpe panel 4×8 12mm price HDPE High Density Polyethylene - OKAY Plastics HDPE rod sizes– diameter 0.250 in - 14 in, length 2 ft, 3 ft, 5 ft, and 10 ft. HDPE lors– HDPE is available in many lors including natural, black, red, yellow, green, beige, blue, polar white, mocha brown, nutmeg, indigo, mercury gray, charcoal gray, slate gray, dolphin gray, sunshade, seafoam, and white/white.