Fast budget for a focused pour

Free Concrete Pad Cost Calculator

This free concrete pad cost calculator prices a shed base, equipment pad or hot tub pad the way a contractor would: concrete, base rock, reinforcement and labor, each on its own line, with a realistic range around the total.

Reviewed September 1, 2026 by Sam Johnson from the Concrete Calculators Editorial Team. Published formulas and editable planning assumptions are identified below.

Pad estimatorEnter your measurements

Presets fill in the common size, thickness and reinforcement for that use. Edit anything and it flips back to custom.

4 inches carries foot traffic, mowers and sheds. Go to 6 for anything you park on.

More options: base, labor and prices

Compacted crushed stone under the pad. Skip only if you are pouring on undisturbed gravel soil.

Form, pour and broom finish at $4.50 per square foot. Turn off if you are pouring it yourself.

National average delivered price for 3,500 psi mix, reviewed quarterly. Edit to match your local quote.

10 percent covers uneven grade and spillage. Subgrade dug too deep eats concrete fast.

Estimated total cost

$937

point estimate, see range below


Likely range
$825 to $1,106
Concrete to order
1.75 cu yd
Concrete cost
$289
Gravel base
2.1 tons, $67
Wire mesh
$42
Labor (form, pour, finish)
$540
Cost per area
$7.81 per sq ft

Plants add a short load fee, often $75 to $150, on orders under about 8 yards. Add it to this estimate when you compare quotes.

Take this estimate with you

Estimated total cost $937 View result
Freshly poured concrete pad inside wooden forms on a compacted gravel base in a backyard
Field context for this estimate. Confirm structural requirements locally before ordering.

How the concrete pad cost calculator works

The concrete pad cost calculator adds four buckets. Concrete is the volume with waste, rounded up to the quarter yard the plant batches in, times your ready mix price (default $165, a national average we review quarterly).

Base is 4 inches of compacted crushed stone at $45 a cubic yard, which weighs about 1.4 tons per yard. Reinforcement is wire mesh at $0.35 or a rebar grid at $1.10 per square foot. Labor is $4.50 per square foot for form, pour and broom finish.

The range is 12 percent under to 18 percent over the point estimate, which is about how far real quotes spread on a straightforward pad.

A worked concrete pad cost example

Worked example: a 12 by 10 shed pad at 4 inches is 1.48 cubic yards, 1.63 with 10 percent waste, so you order 1.75. Concrete comes to $289, gravel is 2.1 tons for $67, mesh $42, labor $540. Point estimate $937, likely range $825 to $1,106.

What each use preset assumes

The use presets fill in the spec we would price for that job. A shed base is 10 by 12 ft at 4 inches with mesh. A hot tub pad is 8 by 8 with a rebar grid for the water weight.

An AC or heat pump pad is 3 by 3, a generator pad 4 by 6, and trailer parking 12 by 24 at 6 inches with rebar. They are stated starting points, and every field stays editable.

Only need the volume, not the price? Use the concrete calculator. Pouring a finished interior floor instead of an outdoor pad? Price it with the concrete floor cost calculator.

Typical concrete pad cost by size

A 4 inch pad on a gravel base with wire mesh runs about $7.70 per square foot installed. Every row uses the calculator defaults: 4 inches thick, gravel base, wire mesh, labor included, $165 ready mix, 10 percent waste.

Pad sizeConcrete to orderPoint estimateLikely range
10x10 ft1.5 cu yd$788$693 to $930
12x10 ft1.75 cu yd$937$825 to $1,106
12x12 ft2 cu yd$1,108$975 to $1,308
16x16 ft3.5 cu yd$1,961$1,726 to $2,314
20x20 ft5.5 cu yd$3,070$2,701 to $3,622
24x24 ft8 cu yd$4,434$3,902 to $5,232

What the pad cost calculator does not include

  • Permits. Many towns want one for anything over a set square footage, and the fee varies too much to guess here.
  • Excavation beyond light grading. Tree roots, an old slab to break out, or hauling spoil are their own line items.
  • A pump or georgia buggy when the truck cannot back up to the forms. Budget a few hundred dollars the moment access is tight.
  • The short load fee on small orders, usually $75 to $150 under about 8 yards. The result note flags it when your pour is small.
  • Sealing, and any structural work. A pad that carries building walls wants thickened edges, which the concrete slab cost calculator prices.

Straight answers

Concrete pad cost questions

Open a question for the practical answer, including the assumptions behind the number.

How much does a 12 by 12 concrete pad cost?

About $1,108 installed using our defaults, with a likely range of $975 to $1,308. Materials alone run about $460 of that, so pouring it yourself saves roughly the $648 labor line if your time is free.

How thick should a pad be for a shed or hot tub?

4 inches on a compacted gravel base carries a shed, a hot tub or foot traffic. Go to 6 inches for anything with wheels heavier than a lawn tractor, and price that thickness in the calculator, not in your head.

Can I skip the gravel base?

Only on undisturbed sandy or gravelly soil that drains. On clay or on any fill, 4 inches of compacted crushed stone is cheap insurance against settling and cracked corners.

Is wire mesh or rebar better for a pad?

Mesh handles shrinkage cracking on light duty pads and costs about a third as much. Step up to a rebar grid at 18 inches on center when the pad will carry a vehicle or bridge soft spots in the subgrade.

What does a concrete pad cost per square foot?

With the concrete pad cost calculator defaults, the installed cost lands between $7.50 and $8 per square foot at 4 inches thick, and small pads sit at the high end because the truck minimum spreads over less area.

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What changed on this page
  • Per field unit choice added.
  • Copy, email and print estimate actions added.
  • Use presets added for shed, hot tub, AC, generator and trailer pads.

Prices and formulas are reviewed on the schedule described in our methodology.