What is the maximum allowed length of a ramp?

upsideinnovations.com - ADA Ramp Requirements Checklist - Upside Innovations

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Below are ADA ramp requirements that must be followed in commercial applications so that the public can have equal access to all buildings. Make sure your wheelchair ramp is ADA-compliant.

Ramp Slope

The steepest slope that an ADA ramp can have is 1:12 which means for every inch of threshold rise, the ramp must be at least 12 inches (one foot) long. If you’re unsure about how to do the calculations, use the ramp slope calculator.

Length

The ramp length is directly related to the height between the ground and the bottom of the door, along with the required slope. For example, the door on your building is 40 inches above the ground. To ensure that your ramp is not steeper than the 1:12 ratio, your ramp needs to be 40 feet long.

Platform Landings

Number of Resting Platform Landings

Following the ADA ramp requirements, the maximum rise for a single ramp run is 30 inches. That means that the maximum length is 30 feet, so one additional platform landing is required for every additional 30 feet of ramp. Why? Because the landings serve as resting areas, the Americans with Disabilities Act determined that after 30 feet of continuous run, a resting area is needed. Ramp Length (ft.) Landings Required 0-30 None 31-60 1 61-90 2 91-120 3

Landing Size

Width: the landing must be at least as wide as the widest ramp run that connects to the landing.

Length: the landing length must be at least 60 inches without obstruction.

Change in direction: if the ramp changes direction, you need a landing with a clear space that is at least 60 inches by 60 inches.

Guardrails and Handrails

Clearance between handrails

The minimum clearance between the ramp handrails is 36 inches so that a wheelchair can fit between the handrails with ease. View all ADA ramp handrail requirements, including length, perimeter, location above the walking surface, and more.

Baluster spacing

Balusters are required on ADA ramps to protect against falling. The balusters must not be spaced farther than 4″ apart from one another so that a child cannot slip through the space.

Guardrail

The guardrail, which is different than the handrail, must be at least 42 inches from the walking surface to prevent people from falling over the side of the ramp.

Edge protection

Barrier/kickplate: you cannot have a gap larger than 4 inches between the ramp or kickplate and the bottom of the guardrail. We get all of our information from the 2010 Americans with Disabilities Act.

What is a safe slope to walk on?

Most ambulatory people and most people who use wheelchairs can manage a slope of 1:16.

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What is a comfortable slope to walk down?

About 1/4" per foot is good. Whether to do a steep ramp or steps depends somewhat on who will be using the walkway. For wheelchair use, of course, you can't have steps. Wheelchair ramps can be no steeper than 1:12, with 1:20 being preferred. But for people walking, steps are often safer.

finehomebuilding.com - Appropriate exterior walk grade?? - Fine Homebuilding

Can someone give me some guidance as to what an appropriate grade is for an exterior walk… so that it isn’t so steep it seems like a wheel chair ramp? Long story, but I’ve just done a paver walkway that I’m shaking my head over and will be redoing… it has a slope of 1 3/8″ per foot, which I was afraid would look like crap. And of course… I was right.

Also… The plan now is to add a landing and steps to break up the grade. The question is… should the landing try to match the grade of the rest of the walk? To be more specific, when you exit the house you’d step down three steps, hit a small landing (approximately 3 1/2 ft long), step down two steps, then hit the rest of the walk that goes out to the sidewalk. Should the small landing be of similar grade to the rest of the walk, or be close to level with a slight grade for drainage??

Thanks in advance for the input!

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