Handicap Ramp Slope and Length Calculator Table of Contents Ramp Length Calculator Ramp length based on the number of stairs Sep 17, 2022 Estimated reading time: 3 minutes Our ADA ramp length calculator determines the required ramp length for your project. Our calculator also tells you the number of resting platforms that you need to have to be ADA-compliant. As a guide, the ADA ramp requirements are 1 foot of ramp for every inch of rise for a 4.8° incline. Ramp Length Calculator Enter elevation height in InchesRESULTS RunMinimum ramp run length in feetLengthTotal ramp system length in feetPlatformsNumber of 5’x5′ resting platformsInterested in Modular Prefabricated Ramps? Our ADA Ramp System is prefabricated and ready to install. Learn More Get Quote A. Elevation heightThe height from the ground up to the bottom of the door or existing walkway. (How to measure elevation) B. Ramp run length C. Total ramp system length in feetIncludes the minimum number of 5′ x 5′ resting platforms and the 5′ x 5′ platform at the top of the ramp. D. Minimum number of resting platformsA 5′ x 5′ (minimum) resting platform is needed every 30 feet of ramp. + 5′ platformsA 5′ x 5′ (minimum) platform is needed at the top of the ramp if there is not an existing one already. 1:12 Slope: For every inch of height from the ground, you need 1 foot of ramp length to achieve a 4.8° incline. Ramp length based on the number of stairs StepsTotal LengthLanding(s)Ramp Run1 Step12′5′7′2 Steps20′5′15′3 Steps27′5′22′4 Steps35′5′30′5 Steps47′10′ ( 2 x 5′)37′*For reference only. Estimations based on a 7 1/2″ stair height (riser). Building codes specify riser heights of no less than 4″ and a maximum of 7 3/4″. How long of a wheelchair ramp do I need for 2 steps? For ADA compliance, the estimated ramp length should be 20′ (5′ landing, 15′ ramp run)* How long of a wheelchair ramp do I need for 3 steps? For ADA compliance, the estimated ramp length should be 27′ (5′ landing, 22′ ramp run)* How long of a wheelchair ramp do I need for 4 steps? For ADA compliance, the estimated ramp length should be 35′ (5′ landing, 30′ ramp run)* How long of a wheelchair ramp do I need for 5 steps? For ADA compliance, the estimated ramp length should be 47′ (2 5′ landings, 37′ ramp run)* Related Articles ADA Ramp Slope Requirements5 Essential Walkway Canopy Elements to ConsiderADA Ramp Requirements ChecklistRamps for Modular Buildings – Planning your ramp configuration.APEX Canopy Resources News Creating Safe & Equal Access for All with Wheelchair Accessible Ramps Read More » September 4, 2022 Ramps ADA Ramp Slope Requirements Read More » March 13, 2018
