The major disadvantages of the manual Wheelchairs have to do with ones upper body. Although the exercise may be good for the people who push themselves over a period of time the same motion continually can eventually lead to injury. Another disadvantage of a manual chair is that the tires will need to be inflated regularly. A variety of factors must be properly considered prior to a person choosing between a power chair and a manual version.
Maintenance is also one of the disadvantages of wooden wheelchair ramps. Aluminum ramps require virtually no maintenance. On the other hand, their wooden cousins require a lot of maintenance. Wooden wheelchair ramps require yearly treatments to keep the wood in an optimal condition. In addition to all of the maintenance required, these ramps aren't as durable as other ramps.
One of the final disadvantages of wooden wheelchair ramps is their durability. Aluminum is a stronger and more durable material, so ramps made of wood will not last as long. You will likely need to replace wooden wheelchair ramps every three years or so. Also, snow and salt can damage wooden ramps, but they will not harm aluminum wheelchair ramps.
