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How Much Concrete for a 12x60 Driveway?

A 12 by 60 foot driveway is 720 square feet. How much concrete for a 12x60 driveway at the common 5-inch thickness: about 11.11 cubic yards. Most people order 12.25 yards to cover waste and an uneven base.

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The math for a 12x60 driveway

  1. Area: 12 ft × 60 ft = 720 sq ft.
  2. Thickness in feet: 5 in ÷ 12 = 0.417 ft.
  3. Volume: 720 × 0.417 = 300.0 cubic feet.
  4. Cubic yards: 300.0 ÷ 27 = 11.11 yd³.
  5. With 10% extra: 12.22 yd³.

The concrete calculator runs the same steps for any size and thickness.

Concrete for a 12x60 driveway by thickness

ThicknessCubic feetCubic yardsYards +10%80 lb bags60 lb bags
4 in240.08.899.78400534
5 in300.011.1112.22500667
6 in360.013.3314.67600800

Bag counts assume about 0.60 cubic feet per 80 lb bag and 0.45 per 60 lb bag, rounded up.

How thick to pour it

Residential concrete driveways are usually 4 to 6 inches thick. Five inches is a sensible minimum if a pickup or delivery truck uses it, and 6 inches if heavier vehicles or an RV park on it. The apron at the street often gets the thicker section.

Placing the order

Concrete is ordered by the cubic yard, and a yard is 27 cubic feet. Ready-mix plants usually sell in quarter- or half-yard steps, so round up to the next step rather than down. Running short in the middle of a pour leaves a cold joint, which is a weak seam in the driveway.

Prep before the pour

Uneven ground is the main reason pours run short. Every half inch of extra depth across the driveway adds concrete you did not plan for. Screed the base flat, check it with a string line and set the forms to finished height before the truck arrives.

Joints, mesh and rebar

Plan the joints before the pour. Panels close to square crack less than long, narrow ones, and joint spacing around 12 feet is typical for a 4-inch slab. Cut joints with a groover while the concrete is soft or with a saw within the first day.

Questions people ask

How many yards of concrete for a 12x60 driveway at 4 inches?

About 8.89 cubic yards, or 9.78 with 10 percent extra.

How many yards for a 12x60 driveway at 6 inches?

About 13.33 cubic yards.

How many 80 lb bags for a 12x60 driveway?

About 400 bags at 4 inches thick, before any waste allowance.

How many square feet is a 12x60 driveway?

720 square feet.

Should I add extra for waste?

Yes. Adding 5 to 10 percent covers uneven base, spillage and form bulges.

How thick should the base under the slab be?

About 4 inches of compacted gravel is common for residential slabs, more on soft or poorly drained soil.

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