screw,ax slide are ramps - Eljana
There are several places one can find aluminum handicap ramps. The most convenient place to find them would be at a local store such as Home Depot. There are also several websites that sell ramps of that kind.
Stair ramps make it easier for wheelchairs to travel up or down staircases. I was able to find more information on stair ramps here: http://www.disabilitysystems.com/
Steps or Ramps between floors of a house are a form of inclined plane
You can find do-it-yourself plans to build wheelchair ramps at www.doityourself.com. Another good site is www.newdisability.com/wheelchairramp.htm
There are many online stores that sell truck loading ramps. A good website to visit is discountramps.com where they sell a variety of truck loading ramps with great discount prices.
Boat ramps are usually located on deep water with riprap around them. Boat ramps are hard to find in salt water becaue many places have mechanical launching.
Most local maps of waterways show boat ramps. Check with the local tourist information to obtain a map.
Ramp Solutions offers severel ways to build stair ramps and a place to get the materials. You could learn everything you need to know about stair ramps from one website.
the only place you can get blackriver ramps are at blackriver-ramps.com but you can get tech deck stuff at target
Instructions for building one's own skate ramps can be found on many DIY sites and general information websites. DIYSkate and About - Skateboard are two of the more accessible sources for making skate ramps.
You could find an inclined plane in a skate park because of all the ramps.