AC 005 - Typical ADA Requirements fo ramps
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- Опубліковано 23 сер 2024
- *** UPDATED VIDEO AVAILABLE ***
• AC 005 - UPDATED April...
*** UPDATED VIDEO AVAILABLE ***
This video briefly explains what a "ramp" is as defined by typical building codes and accessibility guidelines. It also notes typical requirements for a ramp such as slope requirements, Handrail & guardrail requirements, etc.
If you have any architecture subjects that you would like to know more about leave your suggestions in the comments section.
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#architecture #ADA #IBC
What a beautiful handwriting. You must be a surveyor or plan designer.
DO NOT LOOK AT THIS VIDEO FOR ARE... his widths and landing sizes are for CA only not IBC.
True. He lives in California and that landing depth must be specific to that jurisdiction and not the standard ADA 60" landing depth.
Did you mean for the ADA? That’s true, this video is not ADA, but rather CBC. It’s a good video.
Studing for my GB. It helps me understand a bit
AWESOME! Best of wishes on your studying!
Americans With Disabilities Act of 1990
(ADA; Pub. L. 101-336)
The ADA established accessibility guidelines for buildings and facilities
(see Phillips et al., 2020; Foti & Koketsu, 2013, pp. 179-194; U.S. Department of Justice, 2010)
Accessible route: The minimum clear width of an accessible route is 36 inches, except at doors.
Ramp
The maximum slope of a ramp is 1:12. Ramp slopes between 1:16 and 1:20 are preferred. Most ambulatory people and most people who use a wheelchair cannot manage a slope of 1:12 for 30 feet.
The maximum rise for any run is 30 inches.
The minimum clear width of a ramp is 36 inches.
A ramp run that has a rise of more than 6 inches or a horizontal projection of more than 72 inches should have handrails on both sides.
Stairs: All steps should have uniform riser heights and uniform tread widths of no less than 11 inches.
Handrails
Clear space of 1-1½ inches between the handrail and the wall
A height of 34-38 inches, or waist height depending on the person’s height, measured to the top of the gripping surface from the ramp surface or stair nosing, is recommended for adults.
A maximum height of 28 inches is recommended for children.
Doorway
The minimum clear opening is 32 inches. (Note: The minimum clearance width for a standard adult-size wheelchair is 26 inches; the minimum clearance width for a walker is 18 inches.)
Thresholds at doorways should not exceed ¾ inch in height for exterior sliding doors or ½ inch for other types of doors.
Raised thresholds and floor-level changes at accessible doorways should be beveled with a slope no greater than 1:2.
Door hardware for accessible door passages should be mounted no higher than 48 inches above the finished floor.
Wheelchairs: minimum of 60-inch diameter or a 60-inch by 60-inch T-shaped space for a pivoting 180° turn to avoid the need for repeated tries and bumping into surrounding objects
where are you getting the 72" landing requirement from? which code section? I am having hard time finding it.
Did you ever get the 72" answer? I have looked at a few locations and I never found that information. Some clarification would be good
I believe the confusion is the Code reference, IBC vs CBC (California Building Code).
CBC 11B-405.7.3.1 and 11B-405.7.4 and figure 11B-405.7
Thanks, but it should be noted that this applies only for public access ramps. For a private residence, most states do not require ramps to strictly adhere to ADA guidelines. We can and do vary according to the users specific needs. We'll go as steep as 2"/ft for some circumstances and a gentler slope (like 1:20) if needed for Bariatric patients or people with weaker than normal assistants. Also, that 60" x 72" landing is not in ADA. That must be a local code somewhere.
Although I agree with you that some types of residences are not required to comply with ADA, this video IS about ADA. Therefore, if the project needs and ADA ramp, the video is correct. This video does not touch on what projects need to meet ADA or not. Some historical buildings may have ADA exceptions too.
Thanks for the comment.
Do you have a video on PROWAG?
I love it!!! Keep them coming .
What about warehouse ramps, they are 25 and 30 ft. long and the dock is 48" height. That's more than the rule of 1" slope per every 12" diagonally. By this formula ramp should be 48ft. long, something wrong or is an exception. Thanks cool video
the ramps discussed in this video are for human/pedestrian use. The ramps that you are referring to are for vehicular use and have a different requirement. Nevertheless 5% to 6% may be the most accommodating even for a loading dock. You might be surprised how long those ramps are. There may be some loading docks with steeper ramps, but they might be limited to the trucks that can use them. a 10% slope may cause loads to topple so be very careful. Hire a Civil engineer, they can help you design all that stuff!
Are you going to do a video on the newer CBC?
THANK YOU SO MUCH!
You're welcome!
Great explanation and video. I understand that a certain rise over run is required to be ADA compliant for ramps. However what would be the minimum and maximum angle of the ramp be to be compliant this is easier for me to understand. I'm in a wheelchair and probably go up/down ramps that exceed these requurements. Thanks
for every inch you go up (rise), you must go 12 inches over (run). That is the steepest ramp allowed for accessibilty with current ADA standards. As for a minimum, there is no minimum stipulated, it can be completely flat.
Thanks
Useful video! Thanks!
excellent video. short to the pint
Ricky5 thank you. Much appreciated!
Please also explain ABA.
Dear Architect!
just it is for your consideration;
Your comments are coming in writings exactly on top of your drawings
How can one see your drawings?
Sorry about that, the auto-generated subtitles are beyond my control. Nevertheless, it is something to have in mind. Thank you for the comment.
2:57 Ramp for Elves? ;-)
If it was an elf, would it need a ramp? LOL!!!
What to do when street itself has slope
This may differ from jurisdiction to jurisdiction, and from project to project. In most remodels, or tenant improvements, an owner is not required to fix or update government's property (City / County public streets). However, in major projects, usually new ground-up projects, as part of the permitting process, the jurisdiction may request that you provide public paths, such as public sidewalks (some rural areas have streets with no sidewalks), driveways, connections to the street, etc. This may include ramps and paths to the new building. Nevertheless, the street itself is usually a government provided item. Check with a local architect for what is required in your specific jurisdiction.
Thank you
Thank you! but the music is confusing me.
Thank you for your input! This is the first that this comment is made since the channel started. What about the music do you find confusing? the volume, the type? Let us know. Thank you.
It was very distracting for me .
If slope is 4% How to convert feet or inches means 1:12 or 1 1/4 :12
It’s simple. In this application, ratios, fractions, percentages and decimals are the same thing but written differently. For example:
1:2 = 1/2 = 0.5 = 50%
1:4 = 1/4 = 0.25 = 25%
------------
If a slope is 1:12 then:
1:12 = 1/12 = 0.0833 = 8.3%
That means:
For every one inch vertical you have 12 inches horizontal.
Hey guys Pls help me.
I want to build a ramp from the ground floor to 2nd floor with 3.4m height.
I had 4*10m space area. If i have 1.2m span i can divide it by 3 for 1.2m*10m that look like this |_|￣|.. Now im very confuse at about what angle or gradient is the safest if i want to make the ramp that i build is need with an assistance only or someone pushing you to go up or down?. Pls help why all the example over the internet need that basic 1: 12 or 1: 16 it eats up lots of space..
I am sure other countries may have different requirements. However, you are correct, in the U.S. ramps take up a lot of space! Sometimes ramps do not fit in a small place and therefore Limited Use Limited Access Lifts can be used. A ramp from the ground floor to the 2nd floor seems unrealistic . If that is your case you may want to look at a LULA lift instead.
Like to see a semi circle ramps that are about 4 ft off ground level
If it’s 30 feet max for a run then 1:12 would be exceeded if the run length was less than 30 feet while the rise maintained 30 inches.
Taller heights can be met with multiple ramps, however an intermediate landing would be needed so that a single ramp run would not exceed 30 feet. In other words, 2, 3 or more ramps with an intermediate landing between each one is allowed.
I though landing depth could be 60" min.
Hsin-Kuan Chen; Thank you for your comment. There are different requirements for landings. For example; "Top", "Intermediate" and "Bottom" have different requirements. Also whether the ramp turns or not is also an item to consider.
@@archicorner What country are you talking about? The Americans with Disabilities Act is 60" x 60" for turns and 60" at all landings.
I think the video is more likely refer to the California ADA, which is striker than the standard. Standard never mentioned 72" landing depth
cross section for cross slope doesn't make a whole lot of sense...
There are some videos that would be good to 'redo". It may not seem like it, but as time goes by, the process gets much and much better. We learn new ways to do things and as we learn we can often do the same thing but better. This was one of the earlier videos and it is in the list of videos to "upgrade" and do a facelift on. Thank you for the input!