Solved The recommended angle for a wheel chair ramp is 5 | Chegg.com
How Long Should a Wheelchair Ramp Be?
Amazon.com: Fiunkes Foldable Wheelchair Ramp for Doorways, Antiskid Aluminum Ramps for Wheelchairs for Home, Portable Ramps for Steps with Non-Slip Surface, Threshold Ramp Handicap Ramp,Sliver,6ft/180cm
Universal 90° ADA Wheelchair Ramp for 48"H Stage | StageDrop