ADA compliance for a commercial parking lot is not just a matter of painting a wheelchair symbol on a stall near the entrance. Federal accessibility standards, adopted and enforced through Wisconsin’s building code, specify how many accessible spaces a lot needs, how those spaces must be sized and marked, and what signage has to accompany them. Getting any part of it wrong carries real financial and legal risk. This guide walks through the general framework Wisconsin businesses should understand. This is general educational information, not legal advice. Requirements can vary by local jurisdiction and building type, so always confirm specifics with your local building department, architect, or an ADA compliance specialist before finalizing a striping plan.
How Many Accessible Spaces Does Your Lot Need?
The number of required accessible spaces scales with the total number of parking spaces in the lot. As a general guide, based on the federal accessibility standards that Wisconsin’s building code incorporates:
- Lots with 1 to 25 total spaces typically require at least 1 accessible space.
- Lots with 26 to 50 spaces typically require at least 2 accessible spaces.
- Lots with 51 to 75 spaces typically require at least 3 accessible spaces.
- Lots with 76 to 100 spaces typically require at least 4 accessible spaces.
- Larger lots continue to add accessible spaces on a sliding scale as total capacity increases, with very large lots requiring a smaller percentage of the overall area to be accessible.
These figures are commonly cited planning benchmarks based on national accessibility standards. Always verify the exact count required for your specific lot size and occupancy type with your local building official before finalizing a striping plan.
Van-Accessible Spaces
A portion of a lot’s accessible spaces must be designated as van-accessible, generally at a ratio of roughly one van-accessible space for every six accessible spaces, with a minimum of one van-accessible space required regardless of how few total accessible spaces a small lot needs. Van-accessible spaces require a wider access aisle than standard accessible spaces to accommodate a wheelchair lift or ramp deploying from the side of a van.
Striping and Access Aisle Requirements
- Connection to an accessible route. Every accessible space must connect to an accessible route leading to the building entrance, without curbs or steps interrupting the path.
- Dedicated access aisles. Each accessible space requires an adjacent access aisle, marked separately from the parking space itself, wide enough for a wheelchair user to exit a vehicle safely.
- Wider aisles for van spaces. Van-accessible spaces need a wider access aisle than standard accessible spaces to accommodate lift-equipped vehicles.
- Aisles may be shared. In many layouts, two accessible spaces can share a single access aisle, a common and efficient design choice.
- High-visibility, well-maintained markings. Faded striping on an otherwise compliant accessible space can create the same practical problem as a missing marking. Restriping on a regular schedule is part of maintaining compliance, not just curb appeal.
Signage Requirements
Accessible spaces require dedicated signage mounted at a specified height, positioned so it is visible from a vehicle approaching the space. Van-accessible spaces require additional signage indicating that designation. Signage and pavement markings work together as a single compliance requirement. A properly striped space without the required sign, or a sign without properly striped pavement beneath it, does not meet the standard.
Common Compliance Gaps We See
- Accessible spaces that have been restriped over time but have drifted narrower than the required width.
- Access aisles that were never striped separately from the parking space, or that have faded to the point of being indistinguishable.
- Van-accessible signage that is missing, damaged, or mounted at the wrong height.
- Accessible routes that pass through areas with curbs, steps, or uneven pavement, breaking the required unobstructed path.
- Lots that added spaces or reconfigured layout over the years without recalculating the required number of accessible spaces for the new total.
Why This Matters for Your Business
Non-compliant parking is not just a risk during a building inspection. It is a common basis for ADA-related complaints and litigation, and complaints can be filed by any member of the public who encounters the noncompliant condition, whether or not they were personally affected. The financial exposure from a complaint or lawsuit, including legal fees and potential damages, is almost always far greater than the cost of correcting the striping and signage in the first place. Bringing a lot into compliance proactively, before a complaint is filed, is the far less expensive path.
Frequently Asked Questions
Who is responsible for ADA compliance in a leased commercial property?
Responsibility can fall on the property owner, the tenant, or both, depending on the lease terms. It is worth confirming in writing who is responsible for parking lot compliance before a project begins, so there is no confusion about who is authorizing and paying for the work.
How often should accessible space striping be refreshed?
There is no fixed legal timeline, but as a practical matter, accessible markings should be restriped as soon as they show visible fading, since a faded marking can functionally fail to communicate the required information to a driver.
Can we combine ADA striping updates with a broader restriping project?
Yes, and this is the most efficient approach. A full restriping project is the natural time to verify accessible space counts, aisle widths, and signage all at once, rather than treating compliance as a separate task.
American Pavement Solutions provides ADA-informed parking lot striping and signage throughout Northeast Wisconsin. Contact us for a compliance review of your property, or learn more about our parking lot striping services.