
For construction professionals, knowing the cost to install a concrete slab is crucial for accurate project planning and client communication. As of 2025, the cost ranges from $6 to $15 per square foot, depending on various factors such as slab thickness, reinforcement, and site preparation. Accurate cost estimation helps maintain profit margins and ensures competitive bidding.
1. Thickness and Reinforcement
A 4-inch slab for patios differs significantly from a 6-inch slab for garages, affecting both material and labor costs.
2. Site Preparation
Tasks like slope correction and soil compaction can add substantial costs, often matching the concrete pour itself.
3. Concrete Mix Design
Higher PSI mixes and additives like air entrainment can increase costs by 10-15%.
4. Formwork Complexity
Complex designs such as curved edges require more materials and labor.
5. Finishing Level
Different finishes, from broom to stamped patterns, affect crew skill requirements and material costs.
6. Local Market Conditions
Regional variations in labor rates and material costs can impact overall pricing.
National Range – $6 to $15 per square foot installed.
Entry-Level Patio (4" slab, broom finish) – around $6-$8/ft².
Standard Garage (6" slab, #3 rebar 12" O.C.) – around $8-$12/ft².
Premium Outdoor Kitchen (thickened edge, integral color, stamped) – around $12-$15/ft².
Using real-time data, a contractor can provide an accurate quote for a 20' × 20' slab with a 6" thickness, fiber mesh, and a light broom finish. Total cost: $5,770, or $14.43/ft².
Live Supplier Feeds
Access up-to-date pricing for materials like concrete and rebar.
Hands-Free Voice Entry
Input measurements on-site for instant estimates.
Automatic Takeoffs
Import blueprints for precise calculations.
Instant Proposals
Create branded PDFs with payment schedules and e-signature fields.
How accurate are CountBricks slab estimates?
Our estimates have an average variance of under 2%.
Can I adjust profit margin per line item?
Yes, adjust markups independently for materials and labor.
What if my client wants to change the slab size later?
Update dimensions easily for instant recalculations.
Do you integrate with scheduling tools?
Yes, sync with calendar platforms to book pour dates.

Valley Peak Construction used CountBricks to secure a garage slab rebuild project by providing a same-day estimate. The project involved a 24' × 26', 6" thick slab with epoxy-coated rebar and a hard-trowel finish.
1. The foreman used the CountBricks app for instant material and labor estimates.
2. Live pricing adjustments preserved profit margins.
3. Blueprint takeoff tools enhanced proposal credibility.
4. The project was authorized on-site with a $9,880 budget.
Speed and precision in estimates win projects. CountBricks enhances professionalism with clear cost transparency. Visit CountBricks.com for more information.