Asphalt for a 20 × 20 Driveway
A 20 × 20 ft two-car parking pad is 400 sq ft. It needs about 5.1 tons of asphalt at 2 inches, 7.6 tons at 3 inches or 10.2 tons at 4 inches, including 5% for waste. A new driveway this size typically costs $1,568–$2,500 installed.
A 20 × 20 ft square fits two cars side by side in front of a two-car garage with a short setback. It is a common size for garage aprons and parking pads.
| Thickness | Tons | Cubic yards | 15-ton trucks | Material at $121/t |
|---|---|---|---|---|
| 2 in | 5.1 | 2.59 | 1 | $614 |
| 3 in | 7.6 | 3.89 | 1 | $921 |
| 4 in | 10.2 | 5.19 | 1 | $1,228 |
Open in the asphalt calculator Price this driveway
Cost of a 20 × 20 asphalt driveway
| Job | Typical installed cost |
|---|---|
| New driveway (incl. base work) | $1,568–$2,500 |
| Resurface existing asphalt | $800–$2,000 |
| Professional sealcoating | $68–$96 |
Ranges are 400 sq ft × typical prices per square foot ($3.92–$6.25 new, $2–$5 resurfacing; LawnStarter, 2026). For a figure with your own prices and base depth, use the asphalt driveway cost calculator.
Other materials for this size
- Gravel base: 6.9 tons for 4 inches, 10.4 tons for 6 inches.
- Sealer: about 11.4 gallons (3 pails of 4.75 gal) for two coats at 70 sq ft per gallon per coat. See the sealer calculator.
- Millings instead of hot mix: about 10.4 tons for a 4-inch compacted layer. See the millings calculator.
Notes for a 20 × 20 driveway
- 20 ft wide fits two average cars with doors partly open; 24 ft gives each car more room.
- A square area this size usually drains toward the street or a side; tell the crew where water should go before they set grades.
- Two-car pads often carry turning tires in one spot. A 3" layer resists scuffing better than 2" where cars turn in place.
Frequently asked questions
How many tons of asphalt for a 20x20 driveway?
A 20 × 20 ft driveway is 400 sq ft. Including 5% for waste, it takes about 5.1 tons of asphalt at 2 inches thick, 7.6 tons at 3 inches and 10.2 tons at 4 inches (145 lb/ft³).
How much does a 20x20 asphalt driveway cost?
At typical 2026 prices of $3.92–$6.25 per sq ft, a new 20 × 20 ft asphalt driveway costs about $1,568–$2,500 installed. Resurfacing a sound existing driveway runs about $800–$2,000.
How many cubic yards of asphalt for a 20x20 driveway?
About 2.59 cubic yards at 2 inches, 3.89 at 3 inches and 5.19 at 4 inches, including 5% waste.
How much gravel goes under a 20x20 driveway?
A 4-inch compacted gravel base is about 4.9 cubic yards (6.9 tons); a 6-inch base is about 7.4 cubic yards (10.4 tons), at 1.4 tons per cubic yard.
Other driveway sizes
Related calculators
Sources
- LawnStarter: How much does an asphalt driveway cost? (Oct 19, 2026)
- LawnStarter: Cost to resurface an asphalt driveway (2026 edition (no day shown))