How Much Concrete for a 14x80 Driveway?
How much concrete for a 14x80 driveway depends on thickness. The driveway covers 14 × 80 = 1,120 square feet, and at 5 inches thick that is about 17.28 cubic yards, or 19.01 yards with a 10 percent allowance. Mixed from bags, it is roughly 778 bags of 80 lb mix.
Concrete calculator →The math for a 14x80 driveway
- Area: 14 ft × 80 ft = 1,120 sq ft.
- Thickness in feet: 5 in ÷ 12 = 0.417 ft.
- Volume: 1,120 × 0.417 = 466.7 cubic feet.
- Cubic yards: 466.7 ÷ 27 = 17.28 yd³.
- With 10% extra: 19.01 yd³.
The concrete calculator runs the same steps for any size and thickness.
Related: How Much Gravel for a 14x80 Driveway?
Concrete for a 14x80 driveway by thickness
| Thickness | Cubic feet | Cubic yards | Yards +10% | 80 lb bags | 60 lb bags |
|---|---|---|---|---|---|
| 4 in | 373.3 | 13.83 | 15.21 | 623 | 830 |
| 5 in | 466.7 | 17.28 | 19.01 | 778 | 1,038 |
| 6 in | 560.0 | 20.74 | 22.81 | 934 | 1,245 |
Bag counts assume about 0.60 cubic feet per 80 lb bag and 0.45 per 60 lb bag, rounded up.
Thickness for this job
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 Many Tons of Asphalt for a 14x80 Driveway?
Placing the order
Ready-mix is priced and batched by the cubic yard (27 cubic feet). Plants commonly add a small-load fee when an order is under a set minimum, so ask about it when you call. Ordering a little extra costs far less than a second truck.
Getting the ground ready
Prep matters as much as the yardage. Strip sod and soft soil, compact the subgrade, then add a compacted stone base, commonly about 4 inches. A level, firm base also keeps your thickness even, which keeps the yardage close to the math.
Joints and reinforcement
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 10 feet apart control where cracks form.
Questions people ask
How many yards of concrete for a 14x80 driveway at 4 inches?
About 13.83 cubic yards, or 15.21 with 10 percent extra.
How many yards for a 14x80 driveway at 6 inches?
About 20.74 cubic yards.
How many 80 lb bags for a 14x80 driveway?
About 623 bags at 4 inches thick, before any waste allowance.
How many square feet is a 14x80 driveway?
1,120 square feet.
How many 80 lb bags make a cubic yard?
About 45. Each 80 lb bag yields roughly 0.6 cubic feet, and a cubic yard is 27 cubic feet.
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.
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
- How Much Concrete for a 10x40 Driveway?
- How Much Concrete for a 14x60 Driveway?
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