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Question DetailsAsked on 6/12/2013

how much does it cost to build a handicap accessible ramp

Support for ramp to be 2x10 treated lumber. The ramp to be about 4 feet wide, using 4 2x10 on 16 inch centers. The walkway construction to be 5/4 x 6 inch treated lumber. Handrail supports, I think both sides, to be supported by 4x4 treated posts, anchor bolts to joists about every 6-8 feet of ramp. The ramp slope is according to the ADA specs, from 1/15 to a 1/20. A 1/18 means that for every 1 inch of height, the ramp length extends 18 inches (1.5 feet). So, if the stoop on the door is 24 inches above grade , then the length of ramp is 24 x 1.5 feet (for a 1/18) or 36 feet long. That is long.

Conflict: the township stated that the slope should be steeper ; a 1/12 slope. If that is the case, then the length drops to 24 feet. T

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2 Answers


Here is a good article on the subject:

Also, in Source below I provide a (I think current, but did not check) set of guidelines - see Section 4.8 for Ramps. Since the stoop is not over 30" above grade, it looks like one straight ramp will meet code, if you have that kind of straight run available. Otherwise, you need a level platform 5' long in BOTH travel directions at the change of direction.

There are also commercial aluminum modular ramps that go together as a kit, for about $2400 (plus shipping) for a 24', $3000 (plus shipping) for a 30', plus about $250-350 for a concrete landing pad at the bottom. Available from National Ramp, AlumiRamp and others.

I have had jobs where open-air (no rain/snow cover) 25 foot or so ramps with one 90 degree bend and turning platform was scratch-built from all-treated timber (except for handrails) for about $3000.


Answered 6 years ago by LCD


how much would it cost to build a ramp 4 foot wide,27 feet long raised at one end 18 inches

Answered 2 years ago by malik

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