Steel platforms are covered by a 3 year warranty from the manufacturer; aluminum platforms are covered by a lifetime warranty. These modular ramp systems require no maintenance and will not rot, rust, splinter, or corrode.
Dimensions of National Ramp Platforms for Modular Wheelchair Ramps: 36 in. wide with 34.5 in. high railings
The 4 ft. x 4 ft. platform has a shipping weight of 126.75 lbs.; the 5 ft. x 5 ft. platform has a shipping weight of 148.25 lbs.
Weight Capacity: 800 lbs.
For residential and commercial use, the ADA recommends a 1:12 slope, which means every 1 inch of vertical rise requires one foot of ramp. For example, 12 inches of rise requires a 12 foot ramp.
IMPORTANT NOTE: It is your responsibility to ensure that your ramp is compliant with all local and state codes. We strongly urge you to check with the proper authority in your area to ensure code compliance.
Most local and state authorities require a rest platform when a ramp exceeds 30 feet in length. For existing ramps, this may not be required. Again, please check with the proper authority in your area to determine what is required.