ADA Parking Lot Striping Requirements
A practical overview of ADA accessible parking requirements — stall counts, dimensions, access aisles, van-accessible spaces, and pavement markings — to help property owners understand what their parking lot may need.
Note: This guide provides general information based on the 2010 ADA Standards for Accessible Design. Specific requirements can vary based on property type, local codes, and whether your property is subject to new construction or alteration requirements. This is not legal advice. Consult with an ADA compliance professional for your specific situation.
Why ADA Parking Compliance Matters
The Americans with Disabilities Act (ADA) requires that places of public accommodation and commercial facilities provide accessible parking. For property owners and managers, this means maintaining a minimum number of properly marked accessible stalls — including at least one van-accessible space — that are located on an accessible route to the building entrance.
Non-compliant parking lots can expose property owners to complaints filed with the U.S. Department of Justice, private lawsuits under ADA Title III, and local code violations. The most common parking lot deficiencies we encounter when asked to bring a property into compliance include: too few accessible stalls for the lot size, incorrectly sized stalls or access aisles, missing van-accessible designation, faded ISA symbols, and stalls in the wrong location relative to the building entrance.
The good news is that many ADA striping issues are purely marking problems — the physical space is there, it just needs to be correctly striped and stenciled. We help property owners identify these gaps and correct them efficiently.
Minimum Accessible Parking Ratios
The 2010 ADA Standards for Accessible Design (Table 208.2) specify the minimum number of accessible spaces required based on the total number of spaces in the parking facility. Van-accessible spaces are counted within the total accessible space requirement — they are not in addition to it.
| Total Parking Spaces | Min. Accessible Spaces | Min. Van-Accessible |
|---|---|---|
| 1–25 | 1 | 1 |
| 26–50 | 2 | 1 |
| 51–75 | 3 | 1 |
| 76–100 | 4 | 1 |
| 101–150 | 5 | 1 |
| 151–200 | 6 | 1 |
| 201–300 | 7 | 2 |
| 301–400 | 8 | 2 |
| 401–500 | 9 | 3 |
Source: 2010 ADA Standards for Accessible Design, Table 208.2. For lots larger than 500 spaces or medical facilities, different ratios apply. Consult with an accessibility professional for your specific property.
ADA Stall Dimensions
Standard Accessible Space
- Minimum stall width: 8 feet (96")
- Minimum access aisle width: 5 feet (60")
- Access aisle runs the full length of the stall
- Two standard spaces may share one access aisle
- Slope in any direction: max 1:48 (2%)
- ISA symbol painted on pavement in stall
- Access aisle marked with diagonal lines
Van-Accessible Space
- Option A — Wide stall: 11 feet wide, 5-foot access aisle
- Option B — Standard stall: 8 feet wide, 8-foot access aisle
- Minimum overhead clearance to accessible route: 98 inches
- Slope in any direction: max 1:48 (2%)
- ISA symbol painted on pavement
- "Van Accessible" sign or pavement marking required
- At least 1 van space per 6 accessible spaces
Important: Stall width and access aisle dimensions are measured from the inside of the line markings. Parking lot stripers must account for paint line width in their measurements to ensure the interior dimension meets the minimum standard.
Required Pavement Markings
Proper ADA pavement markings require more than simply painting a blue wheelchair symbol. Here is what a correctly marked accessible parking space typically includes:
Stall Lines
The stall boundary lines must clearly define an 8-foot minimum width (11 feet for van-accessible) for the parking space itself.
Access Aisle Lines
The access aisle adjacent to the stall must be clearly striped, typically with diagonal hash lines running from curb to aisle boundary to discourage parking.
ISA Symbol
The International Symbol of Accessibility (wheelchair pictogram) must be painted on the pavement within the stall. It is typically painted in white or blue depending on local requirements.
Van Accessible Marking
Van-accessible spaces must be identified as such — commonly with a "VAN ACCESSIBLE" stencil on the pavement or an additional sign at the front of the space.
Access Aisle Boundary
The full perimeter of the access aisle must be marked so drivers do not park in it. A common mistake is marking the stall but failing to clearly delineate the access aisle.
Curb Ramp Marking
Where the accessible route includes a curb ramp from the parking area to the sidewalk, the ramp must be clearly located relative to the stall and not blocked by the front of a parked vehicle.
Our ADA Striping Services in Georgetown, TX
Georgetown Parking Lot Striping specializes in ADA-compliant handicap parking stall installation and re-striping for commercial properties throughout Georgetown and surrounding areas. We ensure our work meets the physical dimension and marking requirements of the 2010 ADA Standards and current local codes.
We work with property managers, business owners, and facility managers who have received a complaint or citation, who are completing a renovation, or who simply want to proactively audit and correct their accessible parking. We measure stalls and access aisles during the project to confirm dimensions before marking.
ADA Parking Requirements — FAQ
Need ADA-Compliant Striping in Georgetown?
Contact Georgetown Parking Lot Striping for a free quote. We measure, mark, and document your ADA stalls correctly.