Wheelchairs are built by various kinds of material such as frames, wheels and chairs. The frames are made up of steel, aluminium, titanium and carbon fiber, all these are very expensive ones and comes with maximum durability and strength. So, in order to provide your body a complete comfort and safety, wheelchairs are expensive. Well, you can purchase a manual wheelchair as well which are not so expensive and covers almost everything. You can read more about it the article above.