40×60 Concrete Slab Cost
A 40×60 slab covers 2,400 square feet. Here's the concrete, bags and cost for 2026 — a common size for a commercial pad.
Concrete (4", waste in)
32.59 yd³
1,467 × 80 lb bags
Materials (ready-mix)
$4,074 – $6,193
delivered, 4" slab
Installed by a pro
$13,200 – $28,800
4" slab, national average
40×60 slab cost calculator
Adjust thickness, waste or region — the cost updates live.
Waste & region
Order extra for spillage & uneven subgrade. 10% is typical.
Installed cost estimate
$13,200 – $28,800
2,400 sq ft · 32.59 yd³ concrete
Bags of concrete needed (rounded up)
1,467
80 lb
1,956
60 lb
2,347
50 lb
2,934
40 lb
- Ready-mix (delivered)
- $4,074 – $6,193
- Bagged mix (80 lb, DIY)
- $8,069 – $13,203
- Installed by a pro
- $13,200 – $28,800
Estimate only — not a quote. Bag counts are rounded up and include a 10% waste allowance.
40×60 slab cost by thickness
| Thickness | Concrete | 80 lb bags | Ready-mix | Installed |
|---|---|---|---|---|
| 4" | 32.59 yd³ | 1,467 | $4,074 – $6,193 | $13,200 – $28,800 |
| 5" | 40.74 yd³ | 1,834 | $5,093 – $7,741 | $15,000 – $30,600 |
| 6" | 48.89 yd³ | 2,200 | $6,111 – $9,289 | $16,800 – $32,400 |
Includes a 10% waste allowance; bag counts rounded up. National US averages, January 2026.
You'll also need
Sized for this exact slab — tap any item to open its calculator with your measurements already filled in.
40×60 concrete slab: what to expect
A 40×60 slab covers 2,400 square feet. At the standard 4" thickness it takes about 32.59 cubic yards of concrete once you allow 10% for waste, which is roughly 1,467 × 80 lb bags if you mix by hand. Stepping up to 6" — sensible if it'll carry a vehicle — raises that to about 48.89 cubic yards.
Budget around $13,200 – $28,800 to have a 4" slab this size poured and finished by a contractor, or roughly $4,074 – $6,193 in ready-mix if you're doing the labor yourself. On top of the concrete you'll need about 34.07 yd³ of gravel base and 163 sticks of rebar.
Compare nearby sizes
Planning something bigger or smaller? Jump straight to the cost for a nearby size.
Volumes use standard bag yields and a 10% waste allowance; costs are national US averages that vary by region, mix and finish. See our methodology for exactly how each figure is worked out, or check the reference sources: