Detached garage cost in Decatur, AL
Local estimate from BLS wage data and BEA price levels. Reviewed Nov 4, 2026.
- Typical range (576 sq ft)
- $26,200 – $52,500
- Per sq ft
- $45 – $90.50
- before permit
- Versus US midpoint
- −10%
- US $43,500
- Rank of 300 metros
- #230
- 1 = most expensive
A detached garage in Decatur, AL usually costs $26,200 to $52,500 for 576 sq ft. That works out to about $45 to $90.50 per sq ft before permits. Compared with the national midpoint that is $4,200 less. Carpenters earn a median of $24.50 an hour in the Decatur area, 16% below the US median of $29.12.
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Estimated cost for 576 sq ft in Decatur, AL, standard level
$34,100 to $44,600
About $58.50 to $77 per sq ft before permits. Labor is about 46% of the bill.
| Part | Low | High |
|---|---|---|
| Materials | $18,000 | $23,600 |
| Labor | $15,800 | $20,700 |
| Permits and fees | $220 | $340 |
| Total | $34,100 | $44,600 |
Cost breakdown for 576 sq ft in Decatur, AL
| Part of the job | Low | Midpoint | High | Share |
|---|---|---|---|---|
| Materials | $13,900 | $20,800 | $27,800 | 53% |
| Labor | $12,100 | $18,200 | $24,300 | 46% |
| Permits and fees | $130 | $280 | $440 | 1% |
| Total | $26,200 | $39,300 | $52,500 | 100% |
What is behind the Decatur number
The wage side of the estimate leans on carpenters, who do 45% of the hours on a typical job. Their local median is $24.50 an hour. Add the other trades involved and the blended wage index for Decatur is 0.84 (US = 1.00), which puts labor at 46% of the total.
Materials are scaled with BEA's regional price parity for goods. Decatur is at 96.4 against 100 for the US, so a materials line of $21,600 nationally becomes $20,800 here (midpoint, 576 sq ft). Permits follow the all-items index of 87.2: $130 to $440.
Related projects, priced for Decatur
Jobs that often go together with detached garage are priced below at their usual sizes, using the same Decatur wage and price inputs. Compared with national midpoints, garage door comes out highest (−6%) and concrete driveway lowest (−14%); the gap comes from the trades each job uses.
| Project | Size | Range | vs. US |
|---|---|---|---|
| Concrete slab | 400 sq ft | $2,150 – $4,650 | −11% |
| Garage door | 1 door | $660 – $3,500 | −6% |
| Concrete driveway | 600 sq ft | $3,150 – $7,800 | −14% |
| Home addition | 300 sq ft | $34,000 – $68,800 | −11% |
Detached garage: what moves the price in Decatur
Permits
You need a permit for a detached garage: $150-$500 on average, with separate electrical or plumbing permits if those are involved.
Electrical
Running power to a detached garage costs $1,000-$3,800 for a standard build and $5,000 or more for a long trench or amperage upgrade (Angi, Trusscore).
Size and finish level
HomeGuide puts a 2-car detached garage at $20,000-$57,600, with the spread driven by how finished it is.
Is Decatur cheap or dear? The local comparison
Contractors rarely work more than an hour or two from home, so the neighboring metros set a rough ceiling and floor for your quotes. Midpoints for 576 sq ft range from $38,600 to $41,100 across Decatur and its five closest metros.
| Area | Range | Midpoint | vs. here |
|---|---|---|---|
| Decatur, ALthis page | $26,200 – $52,500 | $39,300 | |
| Huntsville, AL30 miles | $25,900 – $51,900 | $38,900 | −1% |
| Birmingham, AL75 miles | $26,000 – $52,200 | $39,100 | −1% |
| Tuscaloosa, AL105 miles | $25,700 – $51,600 | $38,600 | −2% |
| Chattanooga, TN105 miles | $26,600 – $53,400 | $40,000 | +2% |
| Nashville, TN115 miles | $27,300 – $54,900 | $41,100 | +5% |
| Alabama (statewide) | $25,600 – $51,300 | $38,500 | −2% |
| United States | $29,000 – $58,100 | $43,500 | +11% |
Out of the 300 metros we cover, Decatur ranks #230 for the cost of this job (#1 is the most expensive). Statewide, Decatur is 2% above the Alabama figure.
Elsewhere in Alabama
| Metro | Size | Range | Midpoint | vs. here |
|---|---|---|---|---|
| Birmingham, AL | 520,290 jobs | $26,000 – $52,200 | $39,100 | −1% |
| Huntsville, AL | 266,650 jobs | $25,900 – $51,900 | $38,900 | −1% |
| Mobile, AL | 172,550 jobs | $25,800 – $51,700 | $38,700 | −2% |
| Montgomery, AL | 165,550 jobs | $25,300 – $50,800 | $38,100 | −3% |
| Tuscaloosa, AL | 108,460 jobs | $25,700 – $51,600 | $38,600 | −2% |
| Daphne, AL | 87,120 jobs | $25,400 – $51,100 | $38,300 | −3% |
Metros of a similar size
Big cities and small ones price differently, so here is Decatur against the 4 metros with the closest total employment.
| Metro | Size | Range | Midpoint | vs. here |
|---|---|---|---|---|
| Santa Fe, NM | 61,770 jobs | $27,300 – $54,900 | $41,100 | +5% |
| Dothan, AL | 60,720 jobs | $24,500 – $49,100 | $36,800 | −6% |
| Pueblo, CO | 61,780 jobs | $27,400 – $55,100 | $41,300 | +5% |
| Sheboygan, WI | 60,630 jobs | $29,700 – $59,500 | $44,600 | +13% |
Decatur weather and the detached garage calendar
Climate numbers on this page come from NOAA's 1991-2020 U.S. Climate Normals at the nearest suitable station, Decatur Pryor Fld (5 miles from the city center). They are 30-year averages, so any one year can run hotter, colder or wetter.
For pouring concrete, the comfortable months in Decatur are March through June and September through October: 6 of 12. Outside them, January, February, November and December have an average overnight low of 40°F or below, and July and August have an average daytime high of 90°F or more.
The 40°F line is a deliberately cautious stand-in. The American Concrete Institute's cold-weather guide (ACI 306R-16) defines cold-weather concreting around an average daily air temperature below 40°F, which is colder than our test of an average overnight low at or below 40°F, so we flag a few extra shoulder months. In cold weather crews may need heated enclosures, insulating blankets or accelerated mixes, and those measures can raise a quote.
Heat matters for concrete as well. With average highs of 90°F or more in July and August, crews often start early, wet the base and plan for faster set times.
Decatur gets about 49 inches of precipitation in a normal year. The wettest months are February, March and December (5.2 inches in December). Inside the workable window, September and October are the driest, at 3.2 and 3.2 inches. The station averages about 64 days a year at 90°F or above.
We do not adjust the estimate by month, because we have no reliable published data on seasonal pricing. It is still worth asking contractors whether an off-peak start date changes their bid.
| Month | Avg high °F | Avg low °F | Precip (in) | For this job |
|---|---|---|---|---|
| Jan | 51 | 32 | 4.6 | Cold |
| Feb | 55 | 35 | 5.0 | Cold |
| Mar | 64 | 42 | 5.0 | Workable |
| Apr | 73 | 50 | 4.5 | Workable |
| May | 81 | 59 | 4.2 | Workable |
| Jun | 88 | 67 | 3.7 | Workable |
| Jul | 90 | 70 | 4.0 | Hot |
| Aug | 90 | 68 | 3.0 | Hot |
| Sep | 85 | 61 | 3.2 | Workable |
| Oct | 75 | 50 | 3.2 | Workable |
| Nov | 62 | 39 | 4.0 | Cold |
| Dec | 54 | 35 | 5.2 | Cold |
What local crews earn in Decatur
The labor line is built from BLS wage data, one trade at a time. This job draws on 5 trades. We compare each trade's local median with the US median, weight the ratios by how much of the job each trade does, and apply the blend to the national labor cost. For Decatur the blend is 0.84.
Carpenters (47-2031), 45% of the weighting: a median of $24.50 an hour, 16% below the US median of $29.12. The middle half of them earn between $21.75 and $28.48 an hour. About 190 work in the metro. That is 31.0 per 10,000 jobs, compared with 43.1 nationally, so expect fewer local crews to bid.
For construction laborers (47-2061, weighted 20%) the local median is $18.11 an hour, which is 20% below the national $22.66. The middle half of them earn between $15.52 and $23.05 an hour. BLS counts 690 of them working in the area, 112.7 for every 10,000 jobs (US: 70.5), so the local bench is deeper than average.
Cement masons and concrete finishers (47-2051), 15% of the weighting: a median of $22.02 an hour, 20% below the US median of $27.41. The middle half of them earn between $18.00 and $23.77 an hour. About 60 work in the metro. That is 9.8 per 10,000 jobs, compared with 13.3 nationally, so expect fewer local crews to bid.
For electricians (47-2111, weighted 10%) the local median is $30.74 an hour, which is in line with the national $30.38. The middle half of them earn between $24.38 and $50.66 an hour. BLS counts 480 of them working in the area, 78.4 for every 10,000 jobs (US: 48.7), so the local bench is deeper than average.
Roofers (47-2181), 10% of the weighting: a median of $22.25 an hour, 17% below the US median of $26.65. The middle half of them earn between $22.00 and $26.72 an hour. About 30 work in the metro. That is 4.9 per 10,000 jobs, compared with 8.7 nationally, so expect fewer local crews to bid.
A quick sensitivity check: moving the lead trade (carpenters) from the median to the 75th percentile wage adds about $1,350 to the midpoint estimate; the 25th percentile takes off about $920. That is a swing of roughly 2.3% to 3.4% of the total, which is useful for judging whether a bid reflects wages or something else, such as scope or margin.
Decatur has 61,240 jobs in total (BLS, May 2025), ranking 283rd by size among the 300 metros on this site.
| Trade | Weight | 25th pct | Median | 75th pct | US median | Ratio | Level used |
|---|---|---|---|---|---|---|---|
| Carpenters (47-2031) | 45% | $21.75 | $24.50 | $28.48 | $29.12 | 0.84 | metro |
| Cement masons and concrete finishers (47-2051) | 15% | $18.00 | $22.02 | $23.77 | $27.41 | 0.80 | metro |
| Construction laborers (47-2061) | 20% | $15.52 | $18.11 | $23.05 | $22.66 | 0.80 | metro |
| Electricians (47-2111) | 10% | $24.38 | $30.74 | $50.66 | $30.38 | 1.01 | metro |
| Roofers (47-2181) | 10% | $22.00 | $22.25 | $26.72 | $26.65 | 0.83 | metro |
| Blended | 100% | 0.84 | |||||
Decatur: what basic, standard and premium work costs
The cited range is split into basic, standard and premium bands, then scaled to Decatur. Bands overlap, because plenty of standard jobs cost as much as a light premium one. Sizes run from 1-car (12x20), 240 sq ft to 3-car (900 sq ft).
Basic
$26,200 to $36,700
Basic shell: slab, framing, siding, a roll-up door
Standard
$34,100 to $44,600
Finished exterior, insulated, electrical and a nicer door
Premium
$42,000 to $52,500
Insulated and drywalled, heat and cooling, upgraded finishes
| Size | Basic | Standard | Premium |
|---|---|---|---|
| 1-car (12x20), 240 sq ft | $11,000 – $15,400 | $14,300 – $18,800 | $17,700 – $22,100 |
| 2-car (24x24), 576 sq ft | $26,200 – $36,700 | $34,100 – $44,600 | $42,000 – $52,500 |
| 2.5-car (24x30), 720 sq ft | $32,700 – $45,800 | $42,500 – $55,700 | $52,400 – $65,500 |
| 3-car (900 sq ft) | $40,800 – $57,200 | $53,100 – $69,500 | $65,400 – $81,800 |
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Detailed detached garage report for Decatur, AL, $9
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Detached garage in Decatur: your questions
+How much does it cost to build a detached garage in Decatur?
For 576 sq ft, expect $26,200 to $52,500 in the Decatur area. A standard-spec job lands at $34,100 to $44,600. Small jobs usually cost more per sq ft and large ones less.
+What is the price per sq ft for detached garage in Decatur?
About $45 to $90.50 per sq ft for materials and labor, plus $130 to $440 for the permit if one is needed. The US range is $50 to $100.
+Is detached garage cheaper in Decatur or Huntsville?
Huntsville is 30 miles away. The midpoint for 576 sq ft there is $38,900, which is 1% less than Decatur ($39,300). Wage and materials indexes both feed that gap.
+How much of the bill is labor in Decatur?
About 46% at the midpoint, or $18,200 out of $39,300. Materials are 53% and permits 1%. Nationally, labor is 50%.
+What would 2.5-car (24x30), 720 sq ft cost in Decatur?
$32,700 to $65,500. Pick a different size in the estimator above to get your own number.
+Does detached garage need a permit in Decatur?
Often, but rules are set by your city or county building office, so call before you hire. Budget $130 to $440 for fees in the Decatur area (our national range of $150 to $500 scaled by the local price level).
+Is Decatur expensive for detached garage compared with the rest of Alabama?
Decatur is 2% above the Alabama statewide estimate ($38,500 at the midpoint). We cover 9 metros in Alabama; see the state page to compare them.
+What do carpenters earn in Decatur?
The BLS median is $24.50 an hour in the Decatur area, compared with $29.12 nationally. The 25th to 75th percentile range is $21.75 to $28.48.
+What do basic and premium detached garage work cost in Decatur?
For 576 sq ft, basic work runs $26,200 to $36,700 and premium work $42,000 to $52,500. Basic means: basic shell: slab, framing, siding, a roll-up door. Premium means: insulated and drywalled, heat and cooling, upgraded finishes.
+When is the best time to build a detached garage in Decatur?
Based on NOAA 1991-2020 normals, the comfortable months for this kind of work are March through June and September through October. September and October are typically the driest of those months. Local contractors' schedules matter as much as the weather, so book early for the busy months.
Detached garage near Decatur
Where these numbers come from
Base prices are national ranges from the sources below. We scale labor by local BLS wages, materials by BEA goods prices and permits by the BEA all-items price level. Full method on the methodology page.
- HomeGuide: How Much Does a Detached Garage Cost? (2026) (accessed November 4, 2026)
- Trusscore: How Much Does It Cost to Build a Garage? 2026 Price Guide (accessed November 4, 2026)
- Angi: How Much Does It Cost to Build a Detached Garage? [2026 Data] (accessed November 4, 2026)
- HomeGuide: 2026 Building Permit Costs | Fees & Cost Calculator (accessed November 4, 2026)
- BLS Occupational Employment and Wage Statistics, May 2025
- BEA Regional Price Parities, 2024
- NOAA NCEI U.S. Climate Normals, 1991-2020
Note on derived figures: Materials = installed range / 1.6, because Angi puts professional labor at roughly an additional 60% of the materials cost (materials about 62.5% of the total).