10 x 12 Concrete Slab Cost for a Shed
A 10 x 12 concrete slab costs $1,094 to $1,823 installed, about $9.12 – $15.20 per square foot at 4 inches. Enter your ZIP in the calculator to swap national wages for local ones.
LIKELY INSTALLED PRICE
$1,459
Our installed range for this 10×12 ft, 4-inch slab: $1,094 – $1,823 ($9.12 – $15.20 per sq ft)
In plain terms: that's about the size of a shed pad or a small patio, and roughly 45% of the price is the crew's labor.
- DIY materials
- $605
- Concrete
- 1.48 yd³
- Bagged mix
- 74 80-lb bags
- Delivery
- 1 truck, short load
An estimate, not a bid. A contractor's price depends on your site, access and timing.
What changes the price
Where the money goes
- Materials$667
- Labor$549
- Overhead and profit (20%)$243
All 9 line items
| Item | Qty | Material | Labor | Total |
|---|---|---|---|---|
| Site setup, layout and cleanup | 1 job | $100 | $56 | $156 |
| Excavate and grade subgrade | 120 sqft | $0 | $133 | $133 |
| Forms, stakes and form release | 44 lf | $53 | $98 | $150 |
| Compacted crushed-stone base | 2.07 ton | $93 | $38 | $132 |
| 6x6 W1.4 welded wire mesh | 120 sqft | $44 | $27 | $71 |
| Ready-mix concrete, 3,500 psi, delivered | 1.56 yd3 | $271 | $35 | $305 |
| Short-load delivery fee | 1 job | $85 | $0 | $85 |
| Place, screed and broom finish | 120 sqft | $6 | $155 | $161 |
| Sawn control joints | 10 lf | $15 | $7 | $22 |
| Subtotal × overhead and profit (20%) = midpoint | $1,459 | |||
National prices until you enter a ZIP.
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Compare a contractor's price with the range for these inputs.
What next
Get two or three quotes and compare them with $1,094 – $1,823. DIY: 74 bags or 1.56 yd³ of ready-mix.
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Turn this price into an estimate for your customer →Cost by thickness for 10x12 (120 sq ft)
4 in · patios, sheds
$1,094 – $1,823
1.48 yd³ · 74 bags · about $1,459
5 in · garages, driveways
$1,143 – $1,904
1.85 yd³ · 92 bags · about $1,523
6 in · shops, RV pads
$1,211 – $2,019
2.22 yd³ · 110 bags · about $1,615
- Typical use
- The base for a 10x12 storage shed or a small potting shed.
- Thickness
- 4 inches is enough under a storage shed; pour thicker only if a riding mower will park inside.
- Planning note
- Forms run 44 linear ft; set them level and square before ordering, since a crooked form means a crooked shed.
What a 10 x 12 shed base costs to pour
The range covers excavation, 2.1 tons of gravel, forms, 120 sq ft of wire mesh and a broom finish. If you do the digging and forming yourself, the materials alone come to $605.
How much concrete a 10 x 12 slab takes
You need 1.48 yd³ at 4 inches, or 1.56 yd³ ordered with waste. Mixed from bags, that's 74 80-lb bags.
Sizing the slab to the shed kit
Most 10x12 kits sit on a slab of the same footprint, so the walls line up with the slab edge. Some builders add a few inches all round to keep rain off the sill plate. Check the kit's drawings before you set the forms.
Estimate versus contractor bid
This figure is a planning estimate from national data, not a bid. A contractor will price access, soil and haul-off after walking the site, and that written number is what you'd sign.
DIY vs pro for this 10x12 pour
Materials alone come to $605, about 41% of the $1,459 midpoint contractor price. The difference is $854 of labor, equipment, delivery and contractor overhead across 9 line items. At 1.56 yd³ the pour is under the short-load threshold, so bagged mix or a shared truck avoids a delivery fee.
Other popular slab sizes
- 10x10 concrete slab cost$941 – $1,569100 sq ft · 1.23 yd³ at 4 in
- 12x12 concrete slab cost$1,279 – $2,132144 sq ft · 1.78 yd³ at 4 in
- 10x20 concrete slab cost$1,625 – $2,708200 sq ft · 2.47 yd³ at 4 in
- 12x20 concrete slab cost$1,922 – $3,203240 sq ft · 2.96 yd³ at 4 in
- 20x20 concrete slab cost$2,874 – $4,789400 sq ft · 4.94 yd³ at 4 in
- 24x24 concrete slab cost$4,848 – $8,080576 sq ft · 7.11 yd³ at 4 in
Compare with the next sizes
Shed concrete slab cost calculatorAll slab sizes and the full calculator
Frequently asked questions
Is a concrete slab better than a gravel pad for a 10x12 shed?
Concrete costs more but gives a flat, rodent-proof floor that won't shift. Gravel is cheaper and drains well, but the shed needs its own floor frame on top.
How many 80-lb bags for a 10 x 12 slab?
At 4 inches it's 74 bags with waste included. The count changes as soon as you edit the thickness in the calculator.
Should a shed slab have rebar or mesh?
This size is priced with 120 sq ft of wire mesh, which controls cracking under a shed. Rebar only makes sense if heavy equipment will sit inside.
How long does a 10x12 pour take?
The concrete itself is usually placed and finished in one session. Excavation, base and forms add a day or more before that.
For contractors
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