Concrete

Concrete Slab Cost Calculator

Price a concrete slab by size, thickness and local price per yard — with bags, waste and a labour allowance. Free, no signup.

What you're pouring

What are you pouring?

Units

Dimensions

Length (ft)

Width (ft)

Thickness (in)

Bags & waste

Bag size

Waste allowance (%)

Cost — optional

Price per cubic yard ($) — optional

Delivery fee ($) — optional

Labour rate per sq ft ($) — optional

Estimates only. Bag yields vary by brand — check the yield printed on the bag you buy. Ready-mix is sold by the cubic yard; always confirm the price and minimum load with your supplier. This calculator is not a substitute for a structural engineer on load-bearing work.

How slab cost is calculated

Volume x price per yard, plus waste. The calculator works out the slab volume (length x width x thickness), adds your waste allowance, then multiplies by the price per cubic yard your supplier quotes. A 10 ft x 10 ft slab at 4 inches thick is 1.23 cubic yards before waste — about $185 at $150 per yard.

Remember that the quoted price is only part of the job: delivery fees, minimum-load charges, reinforcement (rebar or mesh), formwork and finishing labour are usually separate. Get an itemised quote before you order.

Need bags instead of ready-mix? Use the concrete bag calculator, or the full concrete calculator for footings and columns.

How to use the Concrete Slab Cost Calculator

Enter your slab length, width and thickness.
Enter the price of concrete per cubic yard in your area.
Add a labour rate per square foot if you are hiring a crew.
Compare the materials-only total with the installed total.

Frequently asked questions

How much does a concrete slab cost?

In the US a plain 10 ft x 10 ft slab at 4 inches thick costs roughly $500 to $900 installed, depending on local concrete prices ($125–$180 per cubic yard), labour, and site access. Materials alone for 1.23 cubic yards run about $160–$220.

What affects the cost of a concrete slab?

Thickness, size, concrete strength (PSI), reinforcement (rebar or mesh), site access, finish (broom, stamped or polished), and local labour rates. A thicker slab and a decorative finish add the most cost.

Is it cheaper to pour concrete yourself?

For small slabs under about 1 cubic yard, bagged mix and DIY can save money. Above that, ready-mix delivered by truck is usually cheaper per yard and gives a much better finish — and a bad DIY pour is expensive to fix.

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How slab cost is calculated

How to use the Concrete Slab Cost Calculator

Frequently asked questions

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