Accessible parking is one of the most visible, and most frequently challenged, aspects of a commercial property. In Texas, parking lots are generally governed by both the federal Americans with Disabilities Act (ADA) Standards and the Texas Accessibility Standards (TAS), which the state administers through the Texas Department of Licensing and Regulation. The two frameworks are closely aligned, and the goal is the same: make sure people with disabilities can park, exit their vehicle safely, and reach the building entrance. This guide walks through the basics every DFW owner and property manager should understand.
Important: the figures below are general, widely-cited guidelines to help you understand the topic, they are not legal advice, and requirements can vary by building use, project scope, alterations, and local code. Before relying on any specific number, have your lot evaluated by a qualified professional. Our ADA compliance service provides exactly this kind of audit.
Minimum accessible stall counts by total spaces
The number of accessible stalls a lot needs scales with the total number of parking spaces. The widely-referenced ADA/TAS schedule works in steps, the larger your lot, the more accessible stalls required. As a general guideline:
| Total Parking Spaces | Minimum Accessible Stalls |
|---|---|
| 1, 25 | 1 |
| 26, 50 | 2 |
| 51, 75 | 3 |
| 76, 100 | 4 |
| 101, 150 | 5 |
| 151, 200 | 6 |
| 201, 300 | 7 |
| 501, 1,000 | 2% of total spaces |
For very large lots (over 1,000 spaces) and for special uses such as medical and rehabilitation facilities, different or higher ratios can apply. [CONFIRM the exact count for your lot against current ADA/TAS tables and any applicable local code before relying on it.]
The van-accessible ratio (1 in 6)
Not all accessible stalls are the same. At least one of every six accessible spaces, rounded up, must be van-accessible. So a lot with one to six accessible stalls needs at least one van-accessible stall; a lot with seven to twelve accessible stalls needs at least two, and so on. Van-accessible stalls provide extra room (either a wider access aisle or a wider stall, depending on the layout) and are marked with additional "van accessible" signage so drivers of wheelchair-lift vehicles have somewhere to deploy a ramp.
Stall & access-aisle dimensions
Dimensions are where many older lots fall short. In broad terms:
- Standard accessible car stalls are typically at least 8 feet wide, paired with an access aisle at least 5 feet wide.
- Van-accessible stalls are typically configured so the stall plus access aisle provides extra width, commonly an 8-foot stall with an 8-foot access aisle, or an 11-foot stall with a 5-foot aisle, depending on the standard applied.
- The access aisle is the striped "no parking" zone beside the stall that lets a person transfer to a wheelchair or deploy a lift. It must be marked, kept clear, and connect to an accessible route to the entrance. Two adjacent accessible stalls may share one access aisle.
The access aisle is easy to overlook but critical, a stall without a compliant, clearly marked aisle isn't truly accessible. Getting these stripes and symbols right is part of every striping project we mark.
Signage requirements
Each accessible stall must be identified by a sign showing the International Symbol of Accessibility, and van-accessible stalls need an additional "van accessible" designation. A key detail owners miss: the sign must be mounted high enough that it stays visible even when a vehicle is parked in the stall, generally with the bottom of the sign at least 60 inches above the ground. Signs placed too low, or pavement symbols used in place of a post-mounted sign, are common reasons a lot fails inspection. In Texas, additional state-specific signage (such as fine notices) may also apply.
Slope
Accessible stalls and access aisles must be relatively flat so a wheelchair doesn't roll and a transfer is safe. The general rule is that slope in any direction should not exceed roughly 1:48 (about 2%) across the accessible stall and aisle surface. This is one of the harder items to fix after the fact, since it can involve regrading or resurfacing rather than just repainting, another reason to evaluate accessibility before a lot is built or repaved.
Fine exposure & why compliance matters
Accessible parking is one of the most common subjects of ADA complaints against commercial properties, partly because it's so easy for an outside observer to spot a missing van stall or a faded symbol. Non-compliance can expose owners to federal civil penalties, private lawsuits, and the cost of mandatory corrective work, and first violations can reach into the tens of thousands of dollars, with higher exposure for repeat issues. Beyond the dollars, inaccessible parking genuinely excludes customers and visitors. Because exact penalties depend on the circumstances, we won't quote a precise figure here, the practical takeaway is that the cost of staying compliant is far lower than the cost of a complaint. [CONFIRM current penalty figures with counsel if you plan to cite specific numbers.]
The smart move: a professional audit
ADA and TAS rules are detailed, and the right answer for your lot depends on its size, use, age, and whether it's been altered. Rather than guessing from a table, the safest path is a professional audit that measures your stalls, aisles, signage, and slopes against current standards and flags exactly what needs correction. Faded symbols and missing van stalls are usually quick, affordable fixes; dimensional and slope issues take more planning, but you can't fix what you haven't measured.
Get a free ADA parking review
We provide ADA audits and corrections across the DFW Metroplex, from Dallas to Fort Worth and every city on our service-area map. Call (469) 328-9966 or request a free inspection, and we'll check your accessible parking against current standards and recommend a clear path to compliance. Learn more about our ADA compliance service.