Concrete Slab Cost in Arizona
Quick answer: a 4-inch concrete slab in Arizona costs about $6.00 – $12.00 per sq ft installed, 10% below the U.S. average. A 12 × 12 ft patio runs about $1,050 – $1,850, a 24 × 24 ft garage floor $3,900 – $7,000 and a 20 × 40 ft driveway $5,340 – $9,620.
Arizona's concrete prices sit below the national average in our model, and Phoenix is at about the state level. Heat is the main issue: in summer the slab can stiffen faster than the crew can finish it, so timing and curing are part of the price.
Concrete Prices in Arizona by Project
| Project | Arizona installed | Per sq ft | U.S. average | DIY materials |
|---|---|---|---|---|
| 12 × 12 ft patio | $1,050 – $1,850 | $7.00 – $13.00 | $1,130 – $1,970 | $490 – $720 |
| 10 × 12 ft shed slab | $900 – $1,570 | $7.50 – $13.50 | $970 – $1,680 | $440 – $630 |
| 20 × 20 ft slab | $2,590 – $4,710 | $6.00 – $12.00 | $2,810 – $5,060 | $1,030 – $1,670 |
| 24 × 24 ft garage floor (5 in) | $3,900 – $7,000 | $6.50 – $12.50 | $4,250 – $7,540 | $1,650 – $2,570 |
| 20 × 40 ft driveway (5 in) | $5,340 – $9,620 | $6.50 – $12.50 | $5,820 – $10,380 | $2,220 – $3,500 |
| 30 × 40 ft shop floor (6 in) | $8,410 – $14,940 | $7.00 – $12.50 | $9,190 – $16,140 | $3,730 – $5,650 |
4-inch slabs unless shown. Installed: forms, broom finish and labor, up to vapor barrier, #4 rebar and contractor overhead and profit. DIY: concrete (ready-mix or 80-lb bags, whichever is cheaper) and forms, up to vapor barrier and rebar. Excavation, gravel base and permits are extra.
Metro Areas
Prices in the biggest metro areas differ from the state as a whole, mainly because of labor costs.
| Area | Factor | Slab per sq ft | 12 × 12 patio | 24 × 24 garage | 20 × 40 driveway |
|---|---|---|---|---|---|
| Arizona (statewide) | 0.90 | $6.00 – $12.00 | $1,050 – $1,850 | $3,900 – $7,000 | $5,340 – $9,620 |
| Phoenix metro, AZ | 0.90 | $6.00 – $12.00 | $1,050 – $1,850 | $3,900 – $7,000 | $5,340 – $9,620 |
Building a Slab in Arizona
| Weathering (IRC) | Negligible in the low desert; severe in the high country (Flagstaff and the White Mountains). |
|---|---|
| Concrete strength | 3,000 PSI in the low desert; 3,500 PSI air-entrained in the high country. 3,000 PSI ready-mix runs about $122 – $144 per yd³ here. |
| Frost depth | About 12 in around Phoenix and Tucson; much deeper in Flagstaff and the high country. Check the local code. |
| Soil | Caliche, a cement-hard layer of calcium carbonate, lies under many desert yards and can need a breaker to dig. Some areas have expansive clay. |
| Pouring season | October to April is easiest in the low desert. Summer pours start before sunrise; the concrete should stay below about 90°F at delivery. |
- In summer, ask for a retarder in the mix, dampen the base before the pour, and apply curing compound right after finishing.
- Get excavation priced after a test hole: hitting caliche can double the digging time.
- In the high country, treat the spec like a northern state: air-entrained concrete and no salt the first winter.
Frost depths and permit rules are set by your city or county; check with the local building department before you dig. A permit for a small residential slab or driveway typically costs about $50 – $350.
Price Your Own Slab in Arizona
The calculator below starts at Arizona prices. Enter your size, thickness, finish and reinforcement; if you have local prices for ready-mix or labor, type them over the defaults.
Concrete Slab Cost & Volume Estimator
Precision multi-layer project budgeting: Materials, Sub-Base, Reinforcement, Labor & Equipment
Picking a location sets the ready-mix, excavation and labor rates below to that area's typical level. You can still type your own local prices afterwards. Slab prices by state.
Closer spacing uses more steel and raises the rebar cost.
Not charged when bagged concrete is selected.
A scaled plan of your slab: rebar grid at the spacing you chose, support chairs about every 3 to 4 ft, and the recommended control-joint saw cuts (2.5 times the thickness in inches, in feet, capped at 15 ft). It redraws as you change the inputs.
| Scope Item / Material Description | Amount |
|---|
Enter the total your contractor quoted. We compare it with a benchmark for the same slab and scope you set in the calculator: materials at your entered prices plus labor at the regional standard rate, before any overhead or profit. Make sure the calculator scope (base, rebar, finish, pump, demolition) matches what the bid includes.
Optional: enter the bid's line items to see where the markup sits
Enter the forecast for pour day. The check follows ACI 306R (cold weather) and ACI 305R (hot weather) and estimates the surface evaporation rate that drives plastic shrinkage cracking.
How These Prices Are Worked Out
These are modelled prices, not quotes collected from Arizona contractors. Each project is priced with the same line items as the slab cost calculator at national unit prices, then Arizona's location factor of 0.90 is applied to ready-mix concrete and labor, as the calculator does when you pick Arizona. Bagged concrete, forms, rebar and the delivery fee stay at national prices. The factors are approximate, set by our editors to reflect typical construction cost differences between states; the full method is in the 2026 concrete price report.
Have a quote already? Check it with the concrete quote checker, which uses the same factors.
Arizona Concrete Questions
About $6.00 to $12.00 per sq ft installed for a 4-inch slab with forms, a broom finish and labor, 10% below the national average. A 12 x 12 ft patio runs about $1,050 to $1,850 and a 24 x 24 ft garage floor (5 in) about $3,900 to $7,000. Excavation, gravel and permits are extra.
A 20 x 40 ft driveway, 5 inches thick with rebar and a broom finish, costs about $5,340 to $9,620 installed in Arizona ($6.50 to $12.50 per sq ft). Removing an old driveway and the street apron are extra.
About $122 to $144 per cubic yard for 3,000 PSI ready-mix before delivery fees, and about $129 to $162 for 4,000 PSI. Small loads add a short-load fee of $80 to $200 or more.
In the Phoenix area our model puts 3,000 PSI ready-mix at about $122 to $144 per cubic yard before delivery, and a 4-inch slab at about $6.00 to $12.00 per sq ft installed, 10% below the U.S. average. A 12 x 12 ft patio runs about $1,050 to $1,850 and a 20 x 40 ft driveway about $5,340 to $9,620.
Yes, but early: crews start before sunrise so placing and finishing are done before the hottest hours. A retarder in the mix, a damp base, sunshade or windbreaks and immediate curing keep the slab from drying too fast and cracking.
They are the site's national cost model with Arizona's location factor (0.90) applied to ready-mix and labor, the same thing the calculator does when you pick Arizona. They are modelled estimates, not prices collected from Arizona contractors; get local quotes before you build.