TESTFIT Parking Solver
The AI Parking Lot Generator That Draws the Plan for You
Draw a boundary, set your ratio, and get a parking lot layout built from real geometry: every stall measurable, every count auditable.
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AI Parking Automation
Validate Parking Without Counting Stalls
TestFit's AI designs optimized parking lot layouts against real geometry, not guesswork. It can't invent a dimension or overlap an aisle: every stall is placed to the rules you set.
- Auto-generate surface and structured configurations based on parcel size and shape.
- Set and adjust target parking ratios to meet zoning or project requirements.
- Track stall counts and check parking ratios against project targets in real time.
TestFit has dramatically reduced the time it takes to see and visualize parking, drives, and building massing feasibility on a hospital site.
Damien Linnen Senior Medical Planner, Perkins & Will 
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Contextual Massing
Put Your Parking Layouts in Context
Add massing to drive realistic parking layouts based on actual building footprints.
- Generate 2D and 3D massing alongside parking in a single model.
- Adjust footprints and setbacks to test parking impact in real time.
- Save each option with different design and financial modeling as a scheme
It's completely changed the way we think. Instead of parking first, we're thinking about building first.
Thomas Retnauer Chief Visionary, RBA Architects 
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AI Generates, You Edit
Take Full Control of Every Layout
Override the parking generator anywhere it matters: stalls, aisles, and access points all stay editable.
- Configure ADA, EV, compact, trailer, and custom stall types.
- Adjust drive aisle widths, angles, and configurations.
- Place entrances, exits, and circulation paths to match site access.
Frequently Asked Questions
What is Parking Solver?
Parking Solver is a parking lot generator from TestFit. Draw a site boundary, set a target parking ratio, and it produces an optimized parking layout in seconds: surface, structured, or both. It replaces the hours normally spent drafting by hand.
Does it handle parking garages or only surface lots?
Both. Parking Solver generates surface parking and structured parking, including multi-level garages, and you can compare the two on the same site to see which yields better.
Do I need CAD experience?
No. Parking Solver is parking lot design software built for speed rather than drafting. If you can draw a boundary on a map, you can generate a layout.
How is this different from drawing it in AutoCAD?
In AutoCAD you draw every stall and aisle yourself, so testing a second scheme means starting over. Parking Solver drafts from your rules: your stall dimensions, your aisle widths, your target ratio. Adjust any of them, or move the building footprint, and the layout re-solves in real time with updated stall counts and ratios. Same decisions, far less drafting.
What stall types can I configure?
ADA, EV, compact, trailer and custom stall dimensions, plus drive aisle widths, parking angles, and the placement of entrances, exits and circulation paths.
Can I export to CAD or Revit?
Yes. Export to CAD (.dxf), SketchUp (.skp) and CSV. You can also import sites and parking layouts directly into Revit using the TestFit add-in.
How accurate are the generated layouts?
Layouts respect the dimensions, ratios and stall standards you set, so they're accurate to your own criteria. They're built for feasibility and early design decisions; export to CAD or Revit when you're ready to take a scheme further.
Can I cancel anytime?
Yes. Parking Solver is month-to-month with no annual contract. Cancel from your account and you won't be billed again.
Never Count Parking Stalls Again
Generate parking layouts in seconds, not days.