How Much Concrete for a 10x20 Driveway?
How much concrete for a 10x20 driveway depends on thickness. The driveway covers 10 × 20 = 200 square feet, and at 5 inches thick that is about 3.09 cubic yards, or 3.40 yards with a 10 percent allowance. Mixed from bags, it is roughly 139 bags of 80 lb mix.
Concrete calculator →The math for a 10x20 driveway
- Area: 10 ft × 20 ft = 200 sq ft.
- Thickness in feet: 5 in ÷ 12 = 0.417 ft.
- Volume: 200 × 0.417 = 83.3 cubic feet.
- Cubic yards: 83.3 ÷ 27 = 3.09 yd³.
- With 10% extra: 3.40 yd³.
The concrete calculator runs the same steps for any size and thickness.
Related: How Much Concrete for a 10x20 Slab?
Concrete for a 10x20 driveway by thickness
| Thickness | Cubic feet | Cubic yards | Yards +10% | 80 lb bags | 60 lb bags |
|---|---|---|---|---|---|
| 4 in | 66.7 | 2.47 | 2.72 | 112 | 149 |
| 5 in | 83.3 | 3.09 | 3.40 | 139 | 186 |
| 6 in | 100.0 | 3.70 | 4.07 | 167 | 223 |
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.
Related: How Much Concrete for a 10x20 Patio?
Ordering ready-mix
A cubic yard of concrete is 27 cubic feet and weighs roughly 4,000 pounds. Most ready-mix trucks carry up to about 9 to 10 yards, though local trucks and rules vary. If your total is under a yard or two, bagged mix or a short-load supplier may be cheaper.
Getting the ground ready
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.
Keeping cracks under control
Reinforcement does not stop cracks, but it holds them tight. Wire mesh or rebar set mid-depth on chairs is common for a driveway that carries vehicles; fiber-reinforced mix is an option for light-duty slabs. Joints about 12 feet apart control where cracks form.
Questions people ask
How many yards of concrete for a 10x20 driveway at 4 inches?
About 2.47 cubic yards, or 2.72 with 10 percent extra.
How many yards for a 10x20 driveway at 6 inches?
About 3.70 cubic yards.
How many 80 lb bags for a 10x20 driveway?
About 112 bags at 4 inches thick, before any waste allowance.
How many square feet is a 10x20 driveway?
200 square feet.
How much does a cubic yard of concrete weigh?
Roughly 4,000 pounds, or about 2 tons, for normal-weight concrete.
When is bagged concrete practical?
Usually for jobs under about a cubic yard. Beyond that, mixing dozens of bags by hand gets slow and batches may not blend well.
Related guides
- How Much Area Does a Yard of Concrete Cover?
- How Many Bags of Concrete in a Yard? 40, 60, 80 lb
- Gravel Base Under a Concrete Slab: Depth and Tons
- How Many Yards in a Concrete Truck? Mixer Sizes
- Concrete Short Load Fee: What It Is and How to Cut It
- 60 lb vs 80 lb Concrete Bags: Yield, Count, and Cost
- Rebar vs Wire Mesh in a Slab: Which One to Use
- Cost to Pour a Concrete Slab: Per Square Foot
As an Amazon Associate, AsphaltTons.com earns from qualifying purchases. Product links below are sponsored.