Concrete priced per square foot includes both the material and labor for a finished slab. As of 2026:
• Plain gray concrete, 4-inch slab: $4–$8 per sq ft installed • Reinforced concrete (rebar + mesh): $5.50–$10 per sq ft • Stamped or stained concrete: $8–$18 per sq ft • Polished concrete (interior): $5–$15 per sq ft • Exposed aggregate: $6–$12 per sq ft
Materials alone cost about $1.50–$2.50 per sq ft for a 4-inch slab (yards × $165 ÷ area). Labor, finishing, and site prep make up the rest.
For DIY projects where you handle finishing, you'd pay $1.50–$3 per sq ft in materials (concrete + rebar + form lumber). Plan on the labor cost being roughly equal to materials for a basic finish.
A 12 × 14 patio (168 sq ft) at $6 per sq ft installed runs about $1,000. Same patio DIY: roughly $300–$450 in materials.