Garage Slab Cost

Name: Western Concrete, Stucco, and Hardscapes
Address: 333 City Blvd. W., Ste 300, Orange, CA, 92868, US
Telephone: +1-714-269-5251
Price range: $$

Garage slab cost depends on slab thickness, reinforcement, subgrade condition, edge or footing details, and concrete access. Southern California costs also reflect short-load and pump minimums, local labor rates, permits, inspections, and any required vapor barrier or termite detailing.

Typical range: $12–$24 per square foot — Southern California (2026 pricing)

What moves the price

Thickness and edge design — A thicker slab, turned-down edge, thickened equipment areas, or integrated footings use more concrete and labor.
Subgrade and base preparation — Excavation, export, compaction, imported aggregate base, moisture conditioning, and unstable soil remediation increase cost.
Reinforcement and moisture control — Rebar, welded wire reinforcement, dowels, vapor barrier, and crack-control joints affect material and installation labor.
Placement access — Concrete pumping, long buggy routes, limited truck access, and small-volume delivery charges raise the installed price.
Permits and engineering — New structures, conversions, expansive soils, and attached-garage work may require plans, inspections, or engineered details.