ADA Parking Lot Compliance Basics
Under the 2010 ADA Standards, a lot with 1 to 25 spaces needs at least 1 accessible space, and at least 1 of every 6 accessible spaces must be van-accessible. Accessible spaces and access aisles must be level (no steeper than 1:48 in any direction), connect to an accessible route, and be marked with a sign. Texas applies the closely matching Texas Accessibility Standards (TAS).
Short answer: Under the 2010 ADA Standards, a lot with 1 to 25 spaces needs at least 1 accessible space, and at least 1 of every 6 accessible spaces must be van-accessible. Accessible spaces and access aisles must be level (no steeper than 1:48 in any direction), connect to an accessible route, and be marked with a sign. Texas applies the closely matching Texas Accessibility Standards (TAS).
This page is general information, not legal advice. The official sources are the 2010 ADA Standards on ADA.gov, the ADA.gov parking guidance, and the Texas Accessibility Standards from TDLR.
How many accessible spaces (2010 ADA Standards, Table 208.2)
| Total spaces in the lot | Minimum accessible spaces |
|---|---|
| 1 to 25 | 1 |
| 26 to 50 | 2 |
| 51 to 75 | 3 |
| 76 to 100 | 4 |
| 101 to 150 | 5 |
| 151 to 200 | 6 |
| 201 to 300 | 7 |
| 301 to 400 | 8 |
| 401 to 500 | 9 |
| 501 to 1,000 | 2% of total |
| 1,001 and over | 20, plus 1 for each 100 over 1,000 |
Key dimensions
- Van spaces: at least 1 of every 6 accessible spaces (or fraction of 6). A van space is 132 inches wide with a 60-inch aisle, or 96 inches wide with a 96-inch aisle.
- Car spaces: at least 96 inches wide with an adjacent access aisle at least 60 inches wide.
- Access aisles: marked so parking in them is discouraged, and must connect to an accessible route.
- Slope: spaces and aisles no steeper than 1:48 (about 2%) in any direction.
- Signs: the International Symbol of Accessibility, mounted with the bottom of the sign at least 60 inches above the ground; van spaces marked "van accessible".
- Location: on the shortest accessible route to the accessible entrance.
Texas specifics
Texas enforces the Texas Accessibility Standards through TDLR. Many projects with construction costs of $50,000 or more on buildings open to the public must be registered with TDLR and reviewed and inspected by a Registered Accessibility Specialist (RAS). Check TDLR for your project.
Common problems we see on DFW lots
- Faded or missing aisle striping after a sealcoat
- Accessible spaces sloped steeper than 1:48
- Curb ramps with lips, steep slopes or missing detectable warnings
- Signs missing, too low, or no "van accessible" sign
We handle concrete and striping repairs that support compliance; for a full accessibility review, use a RAS. See sidewalk and ADA ramp repair and parking lot repair.
Updated October 2026 by Revital Paving, Dallas-Fort Worth. More guides · FAQ
ADA Parking Lot Compliance Basics: common questions
How many ADA parking spaces do I need?
Under Table 208.2 of the 2010 ADA Standards: 1 for 1 to 25 total spaces, 2 for 26 to 50, 3 for 51 to 75, 4 for 76 to 100, and more as the lot grows. See ADA.gov for the full table.
How many van-accessible spaces are required?
At least 1 of every 6 accessible spaces, or fraction of 6, must be van-accessible.
How wide is an ADA access aisle?
At least 60 inches wide for car spaces. Van spaces need a 60-inch aisle with a 132-inch space, or a 96-inch aisle with a 96-inch space.
What is the maximum slope of an accessible parking space?
1:48 in any direction, about 2 percent, for both the space and the access aisle.
Does Texas have its own rules?
Yes. Texas uses the Texas Accessibility Standards (TAS), administered by TDLR, which closely track the 2010 ADA Standards.
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