40x60 Concrete Slab Cost for a Pole Barn
A 40x60 concrete slab costs $20,262 to $33,771 installed at 5 inches with rebar, about $8.44 – $14.07 per square foot. Use the calculator to add footings, change thickness or enter your ZIP.
LIKELY INSTALLED PRICE
$27,017
Our installed range for this 40×60 ft, 5-inch slab: $20,262 – $33,771 ($8.44 – $14.07 per sq ft)
In plain terms: that's about the size of a small commercial floor, and roughly 43% of the price is the crew's labor.
- DIY materials
- $15,669
- Concrete
- 37.04 yd³
- Bagged mix
- 1,834 80-lb bags
- Delivery
- 4 trucks
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$12,894
- Labor$9,620
- Overhead and profit (20%)$4,503
All 8 line items
| Item | Qty | Material | Labor | Total |
|---|---|---|---|---|
| Site setup, layout and cleanup | 1 job | $100 | $56 | $156 |
| Excavate and grade subgrade | 2,400 sqft | $0 | $2,664 | $2,664 |
| Forms, stakes and form release | 200 lf | $240 | $444 | $684 |
| Compacted crushed-stone base | 41.48 ton | $1,867 | $767 | $2,634 |
| #4 rebar, tied on chairs | 3,300 lf | $3,292 | $1,465 | $4,757 |
| Ready-mix concrete, 3,500 psi, delivered | 38.89 yd3 | $6,766 | $863 | $7,629 |
| Place, screed and broom finish | 2,400 sqft | $120 | $3,108 | $3,228 |
| Sawn control joints | 340 lf | $510 | $252 | $762 |
| Subtotal × overhead and profit (20%) = midpoint | $27,017 | |||
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 $20,262 – $33,771. DIY: 1,834 bags or 38.89 yd³ of ready-mix.
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Turn this price into an estimate for your customer →Cost by thickness for 40x60 (2,400 sq ft)
4 in · patios, sheds
$18,970 – $31,617
29.63 yd³ · 1,467 bags · about $25,293
5 in · garages, driveways
$20,262 – $33,771
37.04 yd³ · 1,834 bags · about $27,017
6 in · shops, RV pads
$21,434 – $35,723
44.44 yd³ · 2,200 bags · about $28,579
- Typical use
- Pole barns and barndominiums.
- Thickness
- 5 inches with rebar for most barns; 6 inches for heavy equipment or a lift.
- Planning note
- Coordinate the slab with the building kit's post and door layout before anyone orders concrete.
40x60 concrete slab cost
At 2,400 square feet this is the largest size on the site, and the price reflects 37.04 yd³ of concrete plus 3,300 linear ft of rebar. The per-foot rate is usually the lowest of any size.
Pole barn or barndominium floor
A pole barn slab is often poured after the posts are set, between them. A barndominium usually needs footings, a vapor barrier and plumbing sleeves first; the foundation calculator covers that.
Pouring 2,400 sq ft
The job takes 38.89 yd³ on 4 trucks. Most crews pour it in sections with construction joints over one or more days.
What the estimate is for
Use it to set a budget and to compare quotes line by line. It isn't a bid; a contractor's written price after a site visit is.
DIY vs pro for this 40x60 pour
Materials alone come to $15,669, about 58% of the $27,017 midpoint contractor price. The difference is $11,348 of labor, equipment, delivery and contractor overhead across 8 line items. At 38.89 yd³ with waste the pour fills 4 mixer trucks, so ready-mix is the practical route even for a DIY pour.
Other popular slab sizes
- 20x30 concrete slab cost$4,983 – $8,306600 sq ft · 7.41 yd³ at 4 in
- 20x40 concrete slab cost$6,562 – $10,936800 sq ft · 9.88 yd³ at 4 in
- 30x30 concrete slab cost$7,324 – $12,206900 sq ft · 11.11 yd³ at 4 in
- 30x40 concrete slab cost$9,664 – $16,1061,200 sq ft · 14.81 yd³ at 4 in
- 30x50 concrete slab cost$12,004 – $20,0061,500 sq ft · 18.52 yd³ at 4 in
- 40x40 concrete slab cost$12,766 – $21,2761,600 sq ft · 19.75 yd³ at 4 in
Compare with the next sizes
Concrete slab foundation cost calculatorAll slab sizes and the full calculator
Frequently asked questions
How much concrete is a 40x60 slab?
37.04 yd³ at 5 inches, or 38.89 yd³ with waste.
Is the slab poured before or after a pole barn?
Usually after the posts and roof are up, so the slab cures under cover. A barndominium on a monolithic slab is poured first.
What's the cost per square foot for a 40x60 slab?
At national prices it comes to $8.44 – $14.07 installed. Setup costs spread over a large area, so the rate is lower than for small slabs.
Does a 40x60 slab need an engineer?
A building this size often needs stamped plans for the permit. Your building department will say what's required.
For contractors
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