Posts: 4,921
Threads: 0
Joined: May 2010
When we were building ramps they had to be 12 inches run for each inch rise
Posts: 690
Threads: 0
Joined: Apr 2012
Location: Saranac Lake, NY
(06-25-2018, 01:24 PM)JSpill Wrote: Although I don't use a wheelchair, I need a ramp to enter my house. I have mobility issues in that I can't lift my legs high enough to negotiate stairs. I am able to walk with a cane or a walker. It's when I get to stairs that the problem arises. The vertical distance from our concrete patio to the patio door of our house is ten inches. There are two steps each with a five inch riser that the ramp would cover. I'm wondering how long the ramp would have to be. I would like to have a six foot long ramp with handrails. Would such a ramp be long enough or would the angle be too severe? The length of the ramp is important to me because a ten foot ramp would end on grass and not the concrete patio. So after all that, my question is posed to folks who have installed or are familiar with mobility ramps. Can I get by with a six foot long ramp or will the angle be too steep? Thanks.
Recommended ADA grade for walking elderly or unassisted wheelchair is 1:12. So that would make your ramp 10 feet. see this link for a chart
http://www.disabilitysystems.com/ramps/ramp-guide.html
When I was in a landscape architecture program the max grade for a ramp was 8% the same as 1:12 or so. That 8% is fairly steep particularly for long distances, you could probably cheat your distance. What is the maximum height you can lift your foot? Take that elevation and divide it by your stride. You wouldn't want to go any steeper since you would end up with the same problem. Since 10ft puts you in the grass, are you able to add a cement pad to connect the end of the ramp with the patio? I would suggest using the 60" diameter circle rule see
http://evstudio.com/wheelchair-turn-spac...s-act-ada/
Hope this helps
Jim
Train to be miserable...
that way when the real misery starts you won't notice.
Posts: 16,604
Threads: 0
Joined: Oct 2002
Location: Ra-cha-cha, NY
06-25-2018, 01:44 PM
(This post was last modified: 06-25-2018, 01:46 PM by TDKPE.)
I believe the ADA requirement for commercial applications is 1:12, which in this case means for every 1" of rise, 12" of run is required. That would make yours 10 ft long. Now, yours is not a commercial application, and I believe you can do anything you want, but I don't know what 1.7:12 (8.1 deg. instead of 4.8 deg.) would be like.
Can you make a 90 deg. turn to the patio concrete to keep a 1:12 slope? Or make two 5 ft runs starting at an angle to the porch so keep the 10 ft total? Kind of unusual, but again, it's not a public accommodation.
Also, if you can, try a 6 ft length of plywood with a 10" rise, to see if you can negotiate it. Sounds steep, though, for walker or cane use.
Tom
“This place smells like that odd combination of flop sweat, hopelessness, aaaand feet"
Posts: 5,653
Threads: 0
Joined: May 2005
Location: Centre County Pennsylvania
since it's not a wheelchair ramp, you don't really have to live with those requirements. However, what do you think the odds are that you might need a wheelchair in the future? For me, I figure they are pretty good, but hopefully not too soon.
I was in chicago and saw a wheelchair ramp that was at about a 30 degree angle. For daredevils I guess.
Posts: 29,868
Threads: 0
Joined: Jan 2008
Location: Mid-MI
Unfortunately, this all depends on your capabilities. I've only built one... 1' for every 1" of rise.
If the only issue is lifting your foot 5", I'd guess going slow up the steeper ramp would be fine.
If not, you could always have small cement pad added if you go out to 10'.
Mark
I'm no expert, unlike everybody else here - Busdrver
Nah...I like you, young feller...You remind me of my son... Timberwolf 03/27/12
Here's a fact: Benghazi is a Pub Legend... CharlieD 04/19/15
Posts: 920
Threads: 0
Joined: Oct 2001
It certainly didn't take long to get responses. Thank you. When it comes to disabilities it is certainly prudent to follow ADA guidelines. I will most likely call the business that installed a stairlift in my house. They will of course only install a ramp that follows ADA guidelines. This means a ten foot ramp. With that being said, I feel strongly I could negotiate an angle steeper than what the ADA calls for.
Posts: 920
Threads: 0
Joined: Oct 2001
06-25-2018, 03:16 PM
Snow and ice only a problem from Nov.--- May.
Buffalo NY