What it costs to pour a concrete slab in Georgia

Concrete slab cost per square foot in Georgia

A slab for a garage floor, a shop or a pad typically runs $13 to $38+ per sq ft. That covers the concrete, the forms, the labor and the finish.

Size	Typical cost
10 x 10 (100 sq ft)	$1,300 to $3,800+
20 x 20 (400 sq ft)	$5,200 to $15,200+
24 x 24 (576 sq ft)	$7,500 to $21,900+
30 x 40 (1,200 sq ft)	$15,600 to $45,600+
40 x 60 (2,400 sq ft)	$31,200 to $91,200+

Those figures are for a plain, broom-finished slab at a typical residential thickness. A stamped finish, heavier reinforcement or a site that needs real grading first can push a job toward the top of that range, or past it.

How much would it cost to pour a 20x20 slab of concrete?

A 400-square-foot slab, 20 feet by 20 feet, typically runs $5,200 to $15,200+ installed in Georgia. That size shows up often as a garage floor or a workshop slab.

It's also large enough that site prep and how the truck gets in start to matter as much as the square footage does. Whether it needs rebar or mesh depends on what will sit on it and the soil, not the slab's size.

How much does a 40x60 concrete slab cost?

At 2,400 square feet, a 40 x 60 slab, roughly the footprint a shop building or a good-sized pole barn floor needs, typically runs $31,200 to $91,200+.

A slab that size usually costs less per square foot than a small one, since setting forms, getting the truck in position and finishing the surface all spread across more area. What does change is the scale of everything else: more yards of concrete, more finishing time before it sets, and a bigger window for weather to complicate the pour.

What changes what a slab costs

Thickness sits at the top of the list. A slab built to carry a vehicle or heavy equipment takes more concrete, and often more reinforcement, than one that only needs to hold foot traffic.

Site prep adds up fast too. Clearing an overgrown spot, breaking out an old slab or grading a sloped yard all take time before the first truck of concrete arrives.

Access matters more than most people expect. A site a truck can pull straight up to keeps things simple; one where the concrete has to be pumped over a fence or down a steep drive adds time and equipment.

The finish you choose and the distance from the plant factor in as well. Setup, forms and delivery don't shrink with the size of the job, so a very small pour often costs more per square foot than a mid-sized one.

Forms and a compacted base, before the truck shows up

Every slab starts with forms to hold its shape and a base underneath it, usually compacted gravel or well-graded soil, so the concrete has something solid and even to rest on.

Skipping that step, or rushing it, is the most common reason a slab cracks or settles later, no matter how good the pour itself looks on the day.

Whether a given slab also needs wire mesh, rebar or extra depth comes down to the soil underneath it and what's going to use it once it's poured. That's a fair thing to ask about while you're still comparing quotes.

From yardage to a real number for your slab

The most direct way to get a real number is to tell us the size and what the slab is for.

If you already have a shape in mind but aren't sure how much concrete it takes, our concrete calculator works out the yardage from a length, a width and a thickness.

For a closer look at what that yardage costs once it's delivered, our cost-per-yard guide breaks it down before it ever becomes a price per square foot. For the rest of the flatwork we pour, sidewalks and steps included, see our concrete flatwork page.