A 10x12 concrete slab is one of the most common small pours, big enough for a shed or a small patio. Here is what a 10 x 12 concrete pad costs, how much concrete it takes and where the money goes.
10x12 slab cost by thickness
Installed prices for 120 sq ft, including materials and labor:
| Thickness | Rate per sq ft | 10 × 12 cost | Source |
|---|---|---|---|
| 4 in | $6–$8 | $720–$960 | HomeGuide |
| 6 in | $8–$10 | $960–$1,200 | HomeGuide |
| Any (national range) | $6–$12 | $720–$1,440 | HomeGuide |
Angi puts typical slabs at $4–$8 per sq ft, which would be $480–$960 for 120 sq ft. Prices vary by region and site.
Thickness drives the price because a thicker slab takes more concrete and more work. For most sheds and patios, the 4-inch row is the one to budget from.
How much concrete for a 10x12 slab?
A 10 × 12 ft slab 4 inches thick needs about 1.48 cubic yards of concrete, or 1.63 cubic yards with 10% extra. That is about 74 bags of 80 lb mix or 98 bags of 60 lb mix, using Quikrete bag yields. A 6-inch 10 × 12 slab needs about 2.44 cubic yards with 10% extra.
Volume is length × width × thickness. For a 4-inch slab that is 10 × 12 × (4 ÷ 12) = 40 cubic feet before the extra allowance. The table below includes 10% extra for spillage and uneven ground.
| Thickness | Cubic yards (no extra) | Cubic yards (+10%) | 80 lb bags | 60 lb bags |
|---|---|---|---|---|
| 4 in | 1.48 | 1.63 | 74 | 98 |
| 5 in | 1.85 | 2.04 | 92 | 123 |
| 6 in | 2.22 | 2.44 | 110 | 147 |
Bag yields: 80 lb = 0.60 cu ft, 60 lb = 0.45 cu ft (Quikrete).
For other slab sizes, see the 10x10 bag chart or enter your dimensions in the concrete slab cost calculator.
Ready-mix material cost (no labor)
At $119–$147 per cubic yard delivered (HomeGuide), the 1.63 cubic yards for a 4-inch 10 × 12 slab cost about $194–$240 in concrete. Small orders under 10 cubic yards often add a short-load fee of about $53 per yard (HomeGuide), so expect more for a small pour.
| Thickness | Yards | Concrete cost at $119–$147/yd |
|---|---|---|
| 4 in | 1.63 | $194–$240 |
| 5 in | 2.04 | $242–$299 |
| 6 in | 2.44 | $291–$359 |
Concrete only, 10% extra included. Source: HomeGuide (Jan 2026).
What else adds to the cost
The slab itself is only part of the bill. For 120 sq ft:
- Gravel base: $1–$3 per sq ft → $120–$360 for 120 sq ft (HomeGuide).
- Grading/leveling: $0.40–$2.00 per sq ft → $48–$240 (HomeGuide).
- Wire mesh: about $0.20–$0.30 per sq ft (Inch Calculator) → $24–$36.
- Sealing: $1–$3 per sq ft → $120–$360 (HomeGuide).
- Stamped finish: $8–$19 per sq ft installed instead of a plain slab (HomeGuide).
Common uses for a 10x12 slab
A 10x12 slab is a popular size for:
- Shed base
- Small patio
- Hot tub pad
- AC or utility pad
Check the load and any local permit rules for your use before you pour.
DIY or hire a pro?
Labor is about $2–$3 per sq ft (Angi) to $3–$5 (HomeGuide), so roughly $240–$600 of a 10 × 12 job. DIY saves that, but 74 bags is a big hand-mixing job; many DIYers order ready-mix for anything over about a yard.
If you hire a pro, get two or three written quotes and compare them against the ranges above. Use the calculator to plug in each quote’s price per yard and labor rate.
Frequently asked questions
How much does a 10x12 concrete slab cost?
About $720–$1,440 installed, or $720–$960 for a standard 4-inch slab (HomeGuide).
How many yards of concrete for a 10x12 slab?
About 1.48 cubic yards at 4 inches, or 1.63 with 10% extra.
How many bags of concrete for a 10x12 slab?
About 74 bags of 80 lb mix or 98 bags of 60 lb mix at 4 inches thick, with 10% extra.
How thick should a 10x12 shed slab be?
Usually 4 inches for a shed or patio (Angi lists 4–6 inches for patios).
Is a 10x12 slab cheaper with bags or ready-mix?
Compare: ready-mix is about $194–$240 for the concrete plus any short-load fee; get a local bag price and multiply by 74.
Sources
- HomeGuide — Concrete Slab Cost (Feb 3, 2026)
- HomeGuide — Concrete Prices Per Yard (Jan 6, 2026)
- Angi — Concrete Slab Cost (Apr 16, 2026)
- Inch Calculator — Concrete Slab Cost
- Quikrete — Concrete Mix 1101 Data Sheet
Related
- Concrete slab cost calculatorAny size: cubic yards, 60 & 80 lb bags, and installed or DIY cost.
- How many bags of concrete for a 10x10 slabBag charts for 4, 5 and 6 inch slabs.
- Gravel calculatorHow much gravel you need for the base layer, in yards and tons.
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