We needed a 12' ramp that was sturdy and could be moved from the garage to the door by one person to accommodate regular visits from a wheelchair-bound relative,. Others I looked at (despite their advertising claims) were not rigid enough to accommodate the 550# combined weight of powered wheelchair and occupant. The folding mechanism on this ramp is well engineered and the wheels allow me to roll it from the door to the garage with only moderate effort despite its weight. I can install it in minutes and once installed it is perfectly rigid, comparable to a permanently installed ramp. I recommend it highly. It is more than worth the price difference between it and lower priced alternatives.