Our solid foam threshold ramps are the perfect alternative to wooden or aluminum wheelchair ramps. William from Oregon says, "So the ramp is great. We had an aluminum ramp before and it was really loud to walk on and there was always stuff under it (leaves, bugs etc...). This ramp is very strong and solid. My daughter's wheelchair weighs about 400lbs, and closer to 500 with her in it and this thing shows no signs of wear or even use. I love the grey color it blends in a lot better with my concre