What Pouring a New Concrete Foundation Costs in Indianapolis

For a 24 by 24 foot foundation slab with a thickened edge, built from federal wage data and stated assumptions, labor and materials in Indianapolis come to about $10,500 to $16,800, with a midpoint near $13,600. Excavation, permits, engineering and disposal are not included. This is a calculation, not a quote, and no contractor was surveyed or inspected.

Key points

• The calculated range is $10,517 to $16,774 for labor and materials, or $18.26 to $29.12 per square foot of slab, with a midpoint of $13,587.
• The BLS median wage for cement masons and concrete finishers is $29.86 per hour in Indianapolis, $2.45 (8.9%) above the $27.41 national median.
• A mason’s wage is not the price you pay. This page multiplies wages by 2.0 to 3.0 to cover insurance, taxes, equipment, overhead and profit, and that multiplier is an assumption.
• Crew-hours move the total more than anything else: 25% more hours adds $2,406.75 at the midpoint, against $166.32 for the 4.2% rise in the concrete products price index.
• One question tests any bid: how many crew-hours is the labor line based on?

What job does this estimate price?

This estimate prices one specific job: a 24 by 24 foot slab-on-grade foundation for a small addition or detached garage, 576 square feet, with a 4 inch slab and a thickened perimeter footing about 1 foot wide and 1 foot deep. Your project will differ, so treat every input below as something you can replace.

The assumptions, all mine and none taken from BLS:

Input	Assumed value	How it was reached
Slab area	576 sq ft	24 ft × 24 ft
Slab volume	192 cu ft	576 sq ft × 4 in (one third of a foot)
Perimeter footing volume	96 cu ft	96 linear ft × 1 ft × 1 ft
Delivered concrete	12 cu yd	(192 + 96) ÷ 27 = 10.67 cu yd, plus 10% waste, rounded up
Mason and finisher crew	4 workers	Assumption
Working time	3 days of 8 hours	Assumption
Mason crew-hours	96	4 workers × 8 hours × 3 days
Supervisor hours	24	One lead for the same 3 days, 8 hours each

Forming, rebar placement, the pour, screeding and finishing are all inside the 96 hours. A single pour day with a larger crew would use the same crew-hours, so the arithmetic holds as long as total hours do.

What do federal wage figures say about concrete finishers in Indianapolis?

Federal data puts the Indianapolis median wage for cement masons and concrete finishers at $29.86 per hour. The figures below come from the BLS Occupational Employment and Wage Statistics series OEUM002690000000047205108, occupation code 47-2051, survey year 2025. They are wages paid to workers, not prices billed to customers. The supplied data does not state a release date, and it was pulled from the BLS public API on 2026-10-31.

Area	25th percentile	Median	75th percentile	Mean	Employed
United States	$22.60	$27.41	$32.15	$28.87	206,170
Indiana statewide	$23.32	$29.46	$34.03	$29.02	4,390
Indianapolis, IN	$23.90	$29.86	$34.24	$29.42	1,660

For crew supervision, the same data lists a median of $41.01 per hour for first-line supervisors of construction trades and extraction workers in Indianapolis. That is a broader occupation than concrete only, so it is a proxy for a working crew lead. For more on the occupation itself, see the BLS Occupational Outlook Handbook profile.

How much higher are Indianapolis wages than the national figure?

Indianapolis masons earn a median of $2.45 per hour more than the national median, a gap of 8.9%. The gap is smaller at the top and bottom of the pay range.

Measure	Indianapolis	United States	Difference	Percent
25th percentile	$23.90	$22.60	$1.30	5.8%
Median	$29.86	$27.41	$2.45	8.9%
75th percentile	$34.24	$32.15	$2.09	6.5%
Mean	$29.42	$28.87	$0.55	1.9%

Over this job’s 96 mason hours, the median gap is 96 × $2.45 = $235.20 in wages. Using the same $41.01 supervisor wage for both places (the national supervisor figure was not supplied), the total wage bill is $3,850.80 in Indianapolis against $3,615.60 nationally. At a 2.5 multiplier the labor price gap is $588.00, which is 6.5% of the national-wage labor price of $9,039.00.

Indianapolis also sits 1.4% above the Indiana statewide median ($29.86 against $29.46, a difference of $0.40). If you are comparing a bid from a contractor who works outside the metro, the wage level alone would not explain a large difference.

How do you turn a wage into a price?

You multiply the wage by a burden and overhead factor. The hourly wage is what a worker is paid. The homeowner’s bill must also cover payroll taxes, workers’ compensation, liability insurance, trucks, fuel, tools, forms, office time, a warranty reserve and profit. None of that appears in the BLS wage.

This page applies multipliers of 2.0, 2.5 and 3.0 to wages. The range of 2 to 3 times the wage is a common working assumption for small residential contractors. It is an assumption, not a measured figure, and BLS does not publish it. A larger firm with lower overhead per job might sit below 2.0, and a small outfit with high insurance costs and light scheduling might sit above 3.0. If you learn a contractor’s real multiplier, replace mine.

What does the cost build-up look like?

The calculated total runs from $10,517.28 to $16,773.84, with a midpoint of $13,587.00. The low case uses the Indianapolis 25th percentile mason wage and a 2.0 multiplier. The midpoint uses the median wage and 2.5. The high case uses the 75th percentile wage and 3.0. Supervisor wages use the single median of $41.01 in all three, because no percentile was supplied for supervisors.

Line	Low	Midpoint	High
Mason hourly wage (assumed percentile)	$23.90	$29.86	$34.24
Mason crew-hours	96	96	96
Mason wages	$2,294.40	$2,866.56	$3,287.04
Supervisor wages (24 h × $41.01)	$984.24	$984.24	$984.24
Total wages	$3,278.64	$3,850.80	$4,271.28
Burden multiplier (assumption)	2.0	2.5	3.0
Labor as billed	$6,557.28	$9,627.00	$12,813.84
Concrete, 12 cu yd × $180 (assumption)	$2,160.00	$2,160.00	$2,160.00
Rebar, forms, gravel, vapor barrier, anchor bolts (assumption)	$1,800.00	$1,800.00	$1,800.00
Materials total	$3,960.00	$3,960.00	$3,960.00
Total, labor and materials	$10,517.28	$13,587.00	$16,773.84
Per square foot (÷ 576)	$18.26	$23.59	$29.12

The wages, the percentile labels and the $41.01 supervisor figure are from BLS. The crew size, hours, multiplier, concrete volume, $180 per cubic yard and $1,800 sundries allowance are my assumptions. BLS does not publish a dollar price for concrete, so the material figures are placeholders you should replace with a supplier’s number. The result is derived arithmetic, not observed contractor pricing.

Labor is about 72% of the midpoint ($9,627.00 of $13,587.00). Materials are about 29%, so a material price change matters less than a change in how long the crew works.

How sensitive is the result to hours, wages and materials?

The result moves most with the burden multiplier and crew-hours, and least with the material price index. Each row below changes one input from the midpoint of $13,587.00.

Change from midpoint	New total	Change
Burden multiplier 2.0 instead of 2.5	$11,661.60	−$1,925.40
Burden multiplier 3.0 instead of 2.5	$15,512.40	+$1,925.40
25% more crew-hours (120 mason, 30 supervisor)	$15,993.75	+$2,406.75
75th percentile mason wage, other inputs unchanged	$14,638.20	+$1,051.20
National median mason wage, other inputs unchanged	$12,999.00	−$588.00
Material allowance 20% higher	$14,379.00	+$792.00
Material allowance raised by the 4.2% PPI rise	$13,753.32	+$166.32

On materials, the BLS Producer Price Index for concrete products (series WPU133, 1982 = 100) was 410.255 in September 2026 against 393.678 a year earlier, up 4.2%. Hydraulic cement (series WPU1322) was 356.209 against 360.462, down 1.2%. These are index points, not dollars, and I have not converted them into a price per cubic yard. I used the 4.2% only to show direction: a rising product index nudges the material line up, while cement itself is slightly cheaper than a year ago.

What can this calculation not see?

It cannot see anything that is specific to your lot or your contract. The range excludes the following, each of which can add real money:

• Excavation and grading. Digging to footing depth, hauling soil away and compacting the base are different trades with different wages. A sloped lot or rock changes this sharply.
• Permits and inspections. Fees, plan review and the delay of waiting for an inspector before the pour are not in the range.
• Engineering and code requirements. Frost depth, soil bearing, seismic or wind requirements and local code can force deeper footings, more rebar or a stamped drawing. Check your local building department for what applies.
• Disposal. Removing an old slab, spoil or form lumber has its own cost.
• Access. If a truck cannot reach the site, the concrete may need a pump or wheelbarrows, which adds equipment and labor.
• Difficulty. Stepped footings, curves, many corners, interior piers, drains or a basement wall instead of a slab all raise crew-hours well above 96.
• Season. Cold weather may require blankets, heated water or accelerators, and hot weather may need retarders and extra finishing labor. Winter scheduling also changes how busy crews are.
• Emergency or rushed work. A short-notice pour or a weekend premium would sit above the multiplier range.
• Delivery charges. Short-load fees, extra wait time for the truck and fuel surcharges are not in my $180 per cubic yard assumption.
• Finishes. Stamped, colored or exposed surfaces add labor beyond a basic broom finish.

If several of these apply to your site, expect your real bid to sit above the high case. If the job is simpler than assumed, for example a smaller footprint, it may sit below the low case.

How do you read a real quote against these numbers?

Divide the quote into labor, materials and everything else, then compare each part to the build-up above. A quote that gives one lump sum cannot be checked, so ask for it to be itemised. These lines should appear separately:

1. Labor, with crew size and number of days.
2. Ready-mix concrete, with cubic yards and price per yard.
3. Rebar, mesh, forms, gravel and vapor barrier.
4. Excavation and grading, even if subcontracted.
5. Permits, inspections and any engineering.
6. Pump or equipment rental, if used.
7. Disposal of spoil or old concrete.
8. Contingency, if any, shown as its own line.

Then compare the per-square-foot figure. On this job’s assumptions, a total between $18 and $29 per square foot, with excavation and permits excluded, is consistent with the range above. A figure well above $29 is not proof of padding, since excavation or a pump may explain it, but those items should be visible lines.

The single question that exposes a padded bid is: how many crew-hours is the labor line based on, and at what hourly rate? A contractor who knows the job can answer in a sentence. Check the answer against the table. If the answer is 96 hours and the billed labor is far above $12,814, the multiplier is above 3.0 and you should ask why. If the answer is 200 hours for a plain 576 square foot slab, ask what the extra work is.

What should you check before signing?

Check these before you sign anything:

• The written scope matches the dimensions, slab thickness and footing size you were quoted.
• Concrete volume is stated in cubic yards, and the strength rating the plans call for is named.
• Excavation, permits, inspections and disposal are each either listed with a price or stated as excluded.
• The crew-hours and hourly basis for labor are in writing or were given in answer to the question above.
• The contractor carries liability insurance and workers’ compensation, which are among the costs the burden multiplier pays for. Ask for the certificates rather than taking it on trust.
• Payment terms tie money to milestones, such as forms inspected and slab poured, not to dates.
• The price states what happens if the inspector requires changes or if soil conditions differ from what was assumed.
• You have at least one other itemised quote to compare, so the same lines can be set side by side.

Take this page’s range as a way to test a quote, not to replace one. The wages are federal data, but the hours, the multiplier and the material prices are assumptions that only a contractor looking at your site can replace with real numbers.

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• Why Concrete Labor Costs More in San Francisco Than Nearby Metros
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• Concrete Finisher Hourly Rates in Minneapolis

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