U Channel Stock UHMW Polyethylene Grade Standard Plastic Length 10 ft Plastic Length Tolerance +0.125/-0.000 in Outside Leg Length 1.25 in Outside Base Width 4.25 in Inside Leg Length 0.875 in Inside Base Width 3.5 in White Plastic Clarity Opaque Tensile Strength 5 800 psi Impact Strength No Break Friction Coefficient 0.12 Water Absorption 0.01 Percent Plastic Density 0.0339 lb/cu in Plastic Hardness 66D