More detail
Ramp length is set by ADA 1:12 slope: one inch of vertical rise requires one foot of horizontal run. A 24-inch porch needs 24 feet of ramp plus landings. The right slope is often gentler than 1:12 — 1:16 or 1:20 is recommended for users with limited upper-body strength, which makes the ramp longer and more expensive.
Modular aluminum ramps from EZ-Access, PVI, or Roll-A-Ramp are the most common residential option. They bolt to existing concrete or to a small footing, can be reconfigured if the home is sold, and rent at $150-$300/month for short-term needs (post-surgery, rehab transition).
Permanent wood ramps cost less per foot than concrete but require more maintenance. Concrete ramps last decades but cost more upfront ($1,500-$5,000+ for typical residential lengths) and cannot be removed if the home's accessibility need changes. The matched contractor walks through the trade-off based on horizon, terrain, and resale considerations.
Related on this site
- Service: Wheelchair & Mobility Ramps— Permanent and modular ramps engineered to ADA slope (1:12).