You'll need
1.36 cu yd · 62 bags
Cost
$195–$270
Project details
What are you pouring?
Slab dimensions
Quantity
e.g. 8 fence post holes, 3 footings
How you'll buy it
💡 Ready-mix recommended
Your project is ≥1 cubic yard — ready-mix delivery is faster, more consistent, and usually cheaper than 62 bags.
Leave blank to use estimate
Default estimate: $130–$180/yd. Most suppliers have a 1–3 yard minimum.
Reinforcement & site prep
Labor
Cost breakdown
Showing ready-mix pricing (recommended for your volume).
Ready-mix concrete · 1.50 cu yd$195 – $270
Total project cost$195 – $270
💡 Comparison: 62 80-lb bags would cost $372 – $620; ready-mix (1.50 yd) would cost $195 – $270.
Shopping list
Everything you need for this pour.
- Ready-mix concrete (delivered)1.50 cu yd
- 2×4 lumber for forms40 lf
- Concrete mixing tub or wheelbarrow1
- Mason hoe or mixing tool1
- Bull float, edger, groover1 set
- Gloves, eye protection, knee pads1 set
Ready to pour?
Get quotes from ready-mix suppliers in your area.
Math breakdown
Step-by-step from your inputs.
Slab volume · 10 × 10 × (4"/12)33.33 cu ft each
With 10% waste factor36.67 cu ft
Cubic yards · cu ft ÷ 271.36 cu yd
Estimated weight (wet)5,317 lbs
80 lb bags · ÷ 0.6 cu ft per bag62 bags
Pro tips
Slope away from the house. Pour patios with 1/4 inch per foot slope AWAY from any structure. Standing water at the foundation = basement leaks within a few years.
Consider stamped or stained. A plain gray slab is functional. Stamped (textured to look like stone/brick) adds $5-$10/sq ft. Stained adds color for $2-$5/sq ft. Either option dramatically upgrades curb appeal.
Pour in the morning. Don't pour concrete in mid-afternoon summer heat — it sets too fast. Morning pours give you working time. Aim for 60-80°F ambient, no direct hot sun on fresh concrete.
Frequently asked questions
How much concrete for a 15×15 patio at 4 inches?▾
15 × 15 × (4/12) = 75 cubic feet, or 2.78 cubic yards. With 10% waste: about 3 cubic yards. Bagged: 125 × 80-lb bags. Ready-mix is more practical at this volume.
Concrete patio cost per square foot?▾
Plain DIY: $4-$8/sq ft. Plain pro: $8-$14/sq ft. Stamped concrete: $12-$25/sq ft. Decorative patterns: $15-$30/sq ft.
How thick should a patio slab be?▾
4 inches is standard. 3 inches for very small, light-use patios; 5 inches for marginal soil or freeze-thaw climates. Over 4 inches needs reinforcement to prevent cracking.
Patio over existing concrete?▾
Possible — pour a 2-inch overlay if the existing slab is sound. Bond it with concrete bonding adhesive. Easier and cheaper than tearing out and re-pouring.
Related calculators
Concrete Slab Calculator
Calculate concrete needed for any slab — patio, garage floor, shed pad. Cubic yards, bags (40/60/80/90 lb), and total project cost.
Concrete Footing Calculator
Calculate concrete for foundation footings, post footings, and deck footings. Cubic yards, bags, rebar requirements, and total cost.
Concrete Post Hole Calculator
Calculate concrete for fence posts, deck posts, and mailbox posts. Bags per hole, total cubic feet, and cost for any quantity of holes.
Concrete Steps Calculator
Calculate concrete for entry steps, stoops, and stairways. Bags, cubic yards, and total cost — handles any number of steps and width.
Disclaimer. This calculator provides estimates for planning purposes. Actual material quantities and costs may vary based on site conditions, material availability, and local pricing.