How Much Asphalt for a 15 Space Parking Lot?
How much asphalt for a 15 space parking lot: about 88 tons at 3 inches thick, assuming roughly 325 square feet per space including drive aisles, or about 4,875 square feet total.
Asphalt tonnage calculator →Tons by thickness
| Asphalt thickness | Tons (at ~325 sq ft/space) |
|---|---|
| 2 in | 59 |
| 3 in | 88 |
| 4 in | 118 |
| 5 in | 147 |
Tons use about 145 lb per cubic foot of compacted hot mix. Use the asphalt calculator with your actual measured area for a firm number.
Related: How Much Asphalt for a 100 Space Parking Lot?
Layout changes the total
Stall size, aisle width, one-way vs two-way traffic, angled vs 90-degree parking, islands and the entrance all change the area per space. Tight lots may run under 300 square feet per stall; lots with landscaping and wide aisles run well over 350. See parking spaces per acre.
Thickness and base
Car-only lots are often paved with 2 to 3 inches of asphalt over 6 to 8 inches of compacted aggregate base. Areas with trucks, buses or dumpsters need a thicker section. An engineer or local spec usually sets the design for commercial lots. The asphalt base calculator sizes the stone layer.
Related: How Much Asphalt for a 20 Space Parking Lot?
Finishing the lot
Lots need a cross slope, often around 1 to 2 percent, toward inlets or the edge. Plan striping, wheel stops and ADA spaces before paving so the layout works.
Getting an accurate area
A surveyor’s plan or a scaled site drawing gives the most accurate paved area. Break the lot into rectangles for parking rows and aisles, add the entrance and any extra pads, and then convert to tons at the design thickness.
Permits and planning
Commercial lots are often subject to local zoning rules on the number of spaces, ADA stalls, landscaping and stormwater. Check with the local planning office early, since requirements can change the paved area.
Waste and yield
Hand work around islands, curbs and drains uses more material than machine paving across open areas. Many estimators add a few percent to the computed tons, then adjust with the paving crew based on the base grade.
Questions people ask
How many tons of asphalt for 15 parking spaces?
About 88 tons at 3 inches, assuming about 325 sq ft per space.
How many square feet is a 15-space parking lot?
Roughly 4,875 square feet including aisles.
How thick is parking lot asphalt?
Often 2 to 3 inches for car lots, more for heavy traffic, over a compacted stone base.
How many square feet per parking space?
About 300 to 350 square feet per stall including aisles.
Related guides
- Asphalt Parking Lot Cost: Build the Budget From Square Feet and Tons
- How Thick Is a Parking Lot Asphalt Overlay?
- Cross Slope for a Parking Lot
- How Many Parking Spaces Fit on an Acre of Asphalt?
- How Much Asphalt for a 10 Space Parking Lot?
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