We guarantee most ramps for 5 years for anything except overload. You must contact us before returning any ramps or steps to us. Call 724-730-3196 if there is a problem with the ramps or steps. If it is our error we will make it right. If you don't like the ramps and there is nothing wrong with them, there will be a 10% restocking fee. If they are damaged when you receive them, tell the delivery person to take them back and take a picture of the damage if possible.