All ramps are hinged, fold in half for stowage, and have a built in carry handle (excluding the 2' ramp). Available in lengths of 2',3',4',5',6' (600-1800mm) All ramps have a maximun width of 29". All ramps have a maximum weight of 600lbs. 2': 1 step, 11 pounds* 3': 1 step, 15 pounds* 4': 1-2 steps, 21 pounds* 5': 1-2 steps, 26 pounds* 6': 1-3 steps, 36 pounds* * (Approximate weight in lbs) All ramps are hinged, and fold in half for stowage, and have a built in carry handle These aluminium ramps have a ribbed non slip surface, they are designed to bridge steps, kerbs and raised landings. The advised minimum gradient for permanent ramps is 1:12, or higher, however portable ramps are normally usable over 1:6 for an electric scooter, 1:8 by a healthy attendant pushing a wheelchair, or 1:10 for an active user self propelling. Be aware, that the steeper the angle the harder it will be for someone to push or self propel a wheelchair.