Fiberglass U-Channel Material Fiberglass Outside Base Width 6 in Base Thickness 0.25 in Outside Leg Length 1 5/8 in Leg Thickness 0.25 in Overall Length 5 ft Standards ASTM E-84 Maximum Temperature 150 Degrees F Tensile Strength 30 000 psi Resin Type ISOFR Shape U-Channel Color Dark Gray Length Tolerance +/-0.1875 in Minimum Temperature -100 Degrees F Overall Width 6 in System of Measurement Inch Width Tolerance +/-0.094 in