How Much Concrete for a 10×10 Slab?
Get exact concrete amounts, bag counts, and cost estimates for your 10×10 project.
Decision Guide
10x10 slab buying decision
A 10x10 slab gets expensive fast when thickness increases. For 4 inches, bags are possible but heavy. At 6 inches and above, truck delivery is usually the cleaner choice.
Ready-mix is the safer default
At 4 inches, plan around 1.36 yd³ with waste or about 62 bags.
Changing thickness is not cosmetic here. It shifts transport, labor, and total spend.
Before you order
- Thickness drives both budget and buying method.
- Waste-adjusted yards matter more than the exact formula output.
- Bag cost ignores hauling and mixing fatigue.
Next steps
- Lock the final slab use before buying materials.
- Use the waste-adjusted figure when you call a supplier.
- If you stay with bags, plan transport and labor first.
Common mistakes
- Using 4 inches for a load-bearing slab.
- Forgetting to update the buy plan after changing thickness.
- Comparing bag and truck costs without adding waste.
This page is for planning. Local material prices and access conditions can move the real total.
Quick Answer: Concrete for a 10×10 Slab
4" Thick (Patio/Walkway)
1.23 yd³
56 bags (80lb)
6" Thick (Driveway)
1.85 yd³
84 bags (80lb)
8" Thick (Heavy-duty)
2.47 yd³
112 bags (80lb)
Adjustable Calculator
Length and width are locked to 10×10. Adjust thickness and cost.
Results
10×10 Slab Cost Estimate
| Thickness | Yards | 80lb Bags | Concrete Cost | Total w/ Labor* |
|---|---|---|---|---|
| 4 inches | 1.23 | 56 | $172 | $600-$900 |
| 6 inches | 1.85 | 84 | $259 | $800-$1,100 |
| 8 inches | 2.47 | 112 | $346 | $1,000-$1,300 |
*Total includes forming, rebar, pouring, and finishing labor. Prices vary by region.
About a 10×10 Concrete Slab
A 10×10 slab (100 square feet) is one of the most common DIY concrete projects. It's the right size for a small patio, shed base, hot tub pad, or walkway section.
Common Uses for a 10×10 Slab
- Patio: Small seating area, BBQ pad
- Shed Foundation: Standard 10×10 shed base
- Hot Tub Pad: Requires 6"+ thickness for weight
- Walkway/Porch: Entryway landing
How to Calculate
Volume = 10 ft × 10 ft × (4 in ÷ 12) = 33.3 cu ft ÷ 27 = 1.23 cubic yards
Tips for Your 10×10 Slab
- Order 1.5 yards to account for waste (10% extra)
- Use 6" thickness for driveways or anything bearing weight
- Add wire mesh or fiber reinforcement for crack prevention
- For a shed, 4" is sufficient; for a hot tub, use 6-8"