Concrete Slab Cost
Pads, shop floors, shed bases — enter dimensions for the planning range. National 2026 installed range: $6–$12 per square foot — your region, access, and finish decide where you land in it.
What moves the price
Slabs are the simplest pour, which is why they anchor the low end of concrete pricing. The movers: thickness (4" standard; 6" shop floors add ~30%); base prep (existing grade vs excavation and gravel); reinforcement (mesh vs rebar vs fiber); finish (broom base, power-trowel smooth for interiors adds $1–2); and size — small pours cost more per foot because the crew and truck minimums don't shrink with the slab.
Common questions
How much does a concrete slab cost in 2026?
Typically \$6–12 per square foot installed — a 20×20 (400 sq ft) garage or shop slab runs roughly \$2,400–\$4,800 depending on thickness, base prep, and region.
How much does a 24x24 slab cost?
576 sq ft × \$6–12 = roughly \$3,500–\$6,900 installed. Use the estimator above with your exact dimensions.
What's included in an installed slab price?
Typically: minor grading, gravel base, forms, mesh or rebar, the concrete, placement, finishing, and joints. Excavation, thicker edges (turn-downs), vapor barriers, and permits ride on top — confirm line by line when comparing bids.
How much can I save pouring a slab myself?
Materials run \$2.50–4.50/sq ft, so roughly half. A small pad is genuinely DIY-able; past about 200 sq ft you're racing the set time and want experienced hands.