Galvanized steel ASTM 653 Grade 275 coated 275g/m2 min
Average dimensions are2.75-5.25-2.75 inches
Average width is 26inches (660mm)
Estimated coverage if 1 hump lapped is 25 inches (635mm)
Hump height is 2.75 inches (70mm)
Drain width is 5.25 inches (133mm)