U Channel Stock Polycarbonate Grade Standard Wall Thickness 0.05 in Plastic Length 6 ft Outside Leg Length 0.4 in Outside Base Width 0.49 in Inside Leg Length 0.35 in Inside Base Width 0.39 in Clear Plastic Clarity Clear Tensile Strength 9 700 psi Impact Strength 14 ft-lbs/in Friction Coefficient 0.53 Water Absorption 0.13 Percent Plastic Hardness Rockwell R120