U Channel Stock Polycarbonate Grade Standard Wall Thickness 0.05 in Plastic Length 3 ft Outside Leg Length 0.3 in Outside Base Width 0.235 in Inside Leg Length 0.25 in Inside Base Width 0.135 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