Sheet Stock, Polycarbonate, Grade Standard, Plastic Length 8 ft, Plastic Width 4 ft, Plastic Thickness 0.234375 in, Clear, Plastic Clarity Clear, Tensile Strength 8,000 psi, Impact Strength 12.0 ft-lb/in, Temperature Range -211 Degrees to 270 Degrees F, Plastic Hardness Rockwell M70