ADA Compliant Ramp, For Use With 4 ft Door Width, Aluminum Mill Finish, Material Aluminum, Width 4 in, Length 48 in, Height 1/2 in, Surface Type Fluted, Standards ADA, ANSI/BHMA Certified A156.21, UL Classified UL10C, Includes #10 x 1-1/2 in FH Zinc Plated Wood Screws