About this item Heavy-Duty Weight Capacity: This portable wheelchair ramp supports 800 lbs (static) and 600 lbs (dynamic). The aluminum frame with crossbar reinforcements prevents bending on uneven surfaces like gravel or grass. Non-Slip Safety System: The diamond-tread surface + anti-skid coating boosts friction for secure use. Use included grip screws to permanently fix the portable wheelchair ramp to wooden/concrete steps. Smart Height Adaptation: 2FT portable wheelchair ramp: Fits 5"-8" thresholds (home entries). 4FT portable wheelchair ramp: Solves 10"-15" height gaps (garage/curbs). 5FT portable wheelchair ramp: Covers 16"-20" commercial stairs. One-Hand Foldable Design: Stainless steel hinges fold the portable wheelchair ramp to 8" thickness. The ergonomic foam-padded handle reduces strain—weights 12 lbs (2FT) to 18 lbs (5FT). All-Weather Durability: Anodized aluminum resists rust and UV damage. Withstands -40°F to 120°F for year-round outdoor use.