Disability Systems, Inc.
Recommended Slopes for All
Wheelchair Ramps
|
|
|
Ramp
|
Ramp
|
Best Ramp Rise
|
Maximum
|
Maximum
| |
SFW230 |
Singlefold 2' x 30" |
2" |
4" |
6" | |
SFW330 |
Singlefold 3' x 30" |
3" |
6" |
9" | |
SFW430 |
Singlefold 4' x 30" |
4" |
8" |
12" | |
SFW530 |
Singlefold 5' x 30" |
5" |
10" |
15" | |
SFW630 |
Singlefold 6' x 30" |
6" |
12" |
18" | |
WCR530 |
Multifold 5' x 30" |
5" |
10" |
15" | |
WCR630 |
Multifold 6' x 30" |
6" |
12" |
18" | |
WCR730 |
Multifold 7' x 30" |
7" |
14" |
21" | |
WCR830 |
Multifold 8' x 30" |
8" |
16" |
24" | |
WC1030 |
Multifold 10' x 30" |
10" |
20" |
30" | |
WC1230 |
Multifold 12' x 30" |
12" |
24" |
36" | |
UTW630 |
Utility Ramp 6' x 30" |
6" |
12" |
18" | |
UTW730 |
Utility Ramp 7' x 30" |
7" |
14" |
21" | |
UTW830 |
Utility Ramp 8' x 30" |
8" |
16" |
24" | |
UTW1030 |
Utility Ramp 10' x 30" |
10" |
20" |
30" | |
THR832 |
Threshold 8" x 32" |
5/8" |
1 3/8" |
2" | |
TH1032 |
Threshold 10" x 32" |
7/8" |
1 5/8" |
2 1/2" | |
TH1232 |
Threshold 12" x 32" |
1" |
2" |
3" | |
TH1632 |
Threshold 16" x 32" |
1 1/2" |
2 5/8" |
4" | |
TH1636 |
Threshold 16" x 36" |
1 1/2" |
2 5/8" |
4" | |
TH2432 |
Threshold 24" x 32" |
2" |
4" |
6" | |
TH2436 |
Threshold 24" x 36" |
2" |
4" |
6" | |
SL330 |
Solid 3' x 30" |
3" |
6" |
9" | |
SL336 |
Solid 3' x 36" |
3" |
6" |
9" | |
SL430 |
Solid 4' x 30" |
4" |
8" |
12" | |
SL436 |
Solid 4' x 36" |
4" |
8" |
12" | |
SL530 |
Solid 5' x 30" |
5" |
10" |
15" | |
SL536 |
Solid 5' x 36" |
5" |
10" |
15" | |
BAR1636 |
Bariatric Threshold16" x 36" |
1 1/2" |
2 5/8" |
4" | |
BAR2436 |
Bariatric Threshold24" x 36" |
2" |
4" |
6" | |
BAR536 |
Bariatric Multifold5' x 36" |
5" |
10" |
15" | |
BAR636 |
Bariatric Multifold6' x 36" |
6" |
12" |
18" | |
BAR736 |
Bariatric Multifold7' x 36" |
7" |
14" |
21" | |
BAR836 |
Bariatric Multifold8' x 36" |
8" |
16" |
24" | |
BPR348 |
Bariatric Panel Ramp3' x 48" |
3" |
6" |
9" | |
BPR448 |
Bariatric Panel Ramp4' x 48" |
4" |
8" |
12" | |
BPR548 |
Bariatric Panel Ramp5' x 48" |
5" |
10" |
15" | |
BPR648 |
Bariatric Panel Ramp6' x 48" |
6" |
12" |
18" |
To determine the length of ramp for your application,
first you need to determine the rise. The rise is the
vertical measurement between the ground and where the top of
the ramp is going to sit.
Disability Systems recommends a
1:12 slope on most
applications. Residential applications can use a 2:12 slope
ratio if space is a problem. For commercial public
access, check your state code.
To find a 2:12 slope take total amount of rise and divide by
2. If you have a 12 inch rise divide by 2 and the resulting
number would be the length of ramp which is required in feet
or you would need a 6 foot ramp.
A 1:12 slope would require a ramp that is the same length as
your rise. A 1:12 slope for a 12 inch rise would need a 12
foot ramp. One inch of rise means one foot of ramp.
NOTE: Consideration must be taken if the ground is not level
and slopes away from the rise where the ramp will be placed.
Also be aware that ramps that will be used for walking by
the elderly should be 1:12 and have handrails.
Please contact Disability Systems, Inc. at 1-877-258-7423
for help in determining your needs.
Some States have changed the requirements regarding the width of modular ramps for commercial public access. Although the ADA recommends a 36 inch minimum width, some states have adopted other minimum widths. Please check with your local government to determine what the laws are for your area. This does not apply to private residences. We can supply you with widths up to 48" on our modular ramps in order to meet local requirements.
