8×8 Concrete Slab Cost: Price With Low, Average, and High Ranges 2026
The 8×8 concrete slab is a common foundation choice for sheds, patios, or small structures, and buyers typically pay for concrete mix, reinforcement, forms, and labor. This article breaks down exact cost drivers and provides practical ranges in USD to help budget accurately for an 8×8 slab project.
Cost ranges reflect typical scenarios in the continental United States with standard grey concrete, basic reinforcement, and no unusual site complications.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| Concrete volume (8x8x4 in) | $400 | $520 | $860 | 40 sq ft @ 4 in thick |
| Labor to pour and finish | $300 | $500 | $900 | 8-12 hours, crew of 2 |
| Reinforcement (rebar or welded wire) | $60 | $150 | $300 | Code-min or enhanced |
| Formwork and edging | $50 | $120 | $240 | Perimeter forms |
| Site prep and access | $50 | $120 | $300 | Clearing, leveling, mud/debris removal |
| Delivery and pump rental | $70 | $150 | $450 | Truck access, pump optional |
| Permits and inspections | $0 | $60 | $300 | Varies by locality |
| Total | $930 | $1,520 | $2,850 | Typical range for a standard 8×8, 4 in slab |
Assumptions: Midwest to Southeast region, standard Portland cement mix, normal access, no color or stamped finish, no under-slab insulation.
Materials and Labor Breakdown for an 8×8 Slab
The highest share of cost usually comes from concrete and labor, with reinforcement and forms following. Concrete mix and delivery typically run $4-$9 per sq ft for a 4-inch slab, and kits vary by local cement prices and calcium content. In practice, a typical 8×8 slab uses about 0.89 cubic yards of concrete, margining around 0.06 to 0.10 cubic yards of waste per pour.
The table below shows components and typical ranges for a standard 4-inch thickness.
| Component | Low | Average | High | Notes |
|---|---|---|---|---|
| Concrete (8x8x4 in) | $400 | $520 | $860 | Includes tax and basic mix |
| Reinforcement | $60 | $150 | $300 | Rebar or welded wire |
| Forms | $50 | $120 | $240 | Wood forms, stakes |
| Labor (pour/finish) | $300 | $500 | $900 | Finishing work included |
| Delivery/Pumping | $70 | $150 | $450 | Dump site access |
| Permits/Inspections | $0 | $60 | $300 | Depends on city |
Assumptions: 4-inch thickness, residential slab, plain concrete, no stamping or color, standard access.
How Thickness, Finish, And Reinforcement Change the Cost
Thickness choices move price quickly. A 6-inch slab can add approximately 25% to 50% more concrete volume, increasing material costs by about $100-$400 and labor by $100-$300. Finishes beyond a basic broom or trowel add $1-$3 per sq ft or more for stamping, etching, or coloring.
The support structure also matters. Plain steel rebar increases materials by roughly $0.50-$1.00 per linear ft if using 1/2-inch rebar, while welded wire mesh may be cheaper per sq ft but requires closer spacing to meet codes.
Regional Price Differences That Drive Your 8×8 Slab Budget
Prices vary by region due to labor rates, material transport, and permitting costs. In the Southwest, concrete may be cheaper due to milder labor costs, while the Northeast incurs higher permit and labor charges. Expect regional delta ranges of about 10% to 25% between high-cost and low-cost markets.
Site Prep, Access, And Delivery Logistics For a Small Pad
Site prep includes grading, leveling, and removing debris. If access is restricted or the pad sits on soft soil, expect extra work and a higher quote. Poor access can add $100-$400 for labor and equipment setup.
Permits, Inspections, And Local Rules On a Residential 8×8 Slab
Some jurisdictions require a building permit for new slabs, especially when attached to structures or near property lines. Permit costs typically range from $0 to $300, depending on city and county.
Labor Time And Crew Size For A Typical Pour
Most 8×8 pours take 8-12 hours with a crew of 2. If a crew is larger or the schedule tight, hourly labor can rise to $75-$125 per hour per worker, increasing the total by several hundred dollars. Account for weather contingencies in seasonal regions.
Cost-Saving Tactics For An 8×8 Slab Project
Control scope to stay within a 4-inch slab with standard finish, compare pricing for labor-only quotes, and opt for standard concrete and reinforcement without upgrades. Bundling prep work with other driveway or patio projects can reduce per-project overhead.
Three Real-World Quote Scenarios For An 8×8 Slab
- Scenario A: 8×8, 4 in, broom finish, no color, Midwest city; Materials $520, Labor $500, Permits $0, Delivery $150; Total about $1,170.
- Scenario B: 8×8, 4 in, reinforced with rebar, include forms, mild site prep; Materials $700, Labor $730, Permits $60, Delivery $200; Total about $1,690.
- Scenario C: 8×8, 6 in thick, stamped finish, elevated access; Materials $820, Labor $1,100, Permits $150, Delivery $350; Total about $2,420.