You Can Be Selective
You should be selective when it comes to choosing ramps and why not? You need to consider the durability factor and also why you want need a ramp. Is it for business purposes or for home or for multi-purpose such as home and traveling and moving around different places in the city? You may have to commute everyday and probably you are on the wheel chair for sometime. To move in and out of the house is not easy and also to move into the van can be a problem. For this you can afford threshold ramps or rubber curb ramps.
You can also look for the aluminum self-sufficient ramps which are pretty good and withstand good amount of weight. These ramps are available in various sizes and all the specifications regarding their usage and durability is provided in detail by the manufacturing companies. You can check on the models online.