Detached garage cost in Slidell, LA
Local estimate from BLS wage data and BEA price levels. Reviewed Nov 4, 2026.
- Typical range (576 sq ft)
- $25,600 – $51,300
- Per sq ft
- $44 – $88.50
- before permit
- Versus US midpoint
- −12%
- US $43,500
- Rank of 300 metros
- #263
- 1 = most expensive
Slidell homeowners pay roughly $25,600 to $51,300 to build a detached garage at 576 sq ft, or $44 to $88.50 per sq ft (permit not included). Against the US midpoint, Slidell is 12% lower. Carpenters earn a median of $23.23 an hour in the Slidell area, 20% below the US median of $29.12.
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Estimated cost for 576 sq ft in Slidell, LA, standard level
$33,300 to $43,600
About $57.50 to $75 per sq ft before permits. Labor is about 47% of the bill.
| Part | Low | High |
|---|---|---|
| Materials | $17,500 | $22,900 |
| Labor | $15,500 | $20,300 |
| Permits and fees | $240 | $370 |
| Total | $33,300 | $43,600 |
Cost breakdown for 576 sq ft in Slidell, LA
| Part of the job | Low | Midpoint | High | Share |
|---|---|---|---|---|
| Materials | $13,500 | $20,200 | $27,000 | 53% |
| Labor | $11,900 | $17,900 | $23,900 | 47% |
| Permits and fees | $140 | $300 | $460 | 1% |
| Total | $25,600 | $38,400 | $51,300 | 100% |
What is behind the Slidell number
The wage side of the estimate leans on carpenters, who do 45% of the hours on a typical job. Their local median is $23.23 an hour. Add the other trades involved and the blended wage index for Slidell is 0.83 (US = 1.00), which puts labor at 47% of the total.
On the materials line, the BEA goods price index for the Slidell metro is 93.7 (US = 100). The midpoint materials bill for 576 sq ft comes to $20,200, compared with $21,600 at national prices. Permit and inspection fees are scaled by the broader index (92.7) and land at $140 to $460.
Data note: 25% of the labor weighting for this project uses a statewide median because BLS has no published metro figure for that trade in Slidell. The wage table below marks each row.
Specs and site conditions that change a Slidell bid
Garage apartments
A garage with living space is a different project: HomeGuide puts them at $80,000-$300,000.
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).
Slidell: what basic, standard and premium work costs
Three bands are cut from the same cited range and localized for Slidell wages and prices. They overlap on purpose: a good standard job and a modest premium job can cost the same. The grid below prices the same bands at 4 common sizes.
Basic
$25,600 to $35,900
Basic shell: slab, framing, siding, a roll-up door
Standard
$33,300 to $43,600
Finished exterior, insulated, electrical and a nicer door
Premium
$41,000 to $51,300
Insulated and drywalled, heat and cooling, upgraded finishes
| Size | Basic | Standard | Premium |
|---|---|---|---|
| 1-car (12x20), 240 sq ft | $10,700 – $15,100 | $14,000 – $18,400 | $17,300 – $21,600 |
| 2-car (24x24), 576 sq ft | $25,600 – $35,900 | $33,300 – $43,600 | $41,000 – $51,300 |
| 2.5-car (24x30), 720 sq ft | $31,900 – $44,800 | $41,500 – $54,400 | $51,200 – $64,000 |
| 3-car (900 sq ft) | $39,900 – $55,900 | $51,900 – $67,900 | $63,900 – $79,900 |
Local wages behind the labor line
Wages are the part of this estimate that changes most from town to town. 5 trades carry the job here, and each is compared with its US median. The weighted result for Slidell is 0.83 times the national level.
For carpenters (47-2031, weighted 45%) the local median is $23.23 an hour, which is 20% below the national $29.12. The middle half of them earn between $17.98 and $28.08 an hour. BLS counts 450 of them working in the area, 45.8 for every 10,000 jobs (US: 43.1), so the local bench is about average.
Construction laborers (47-2061), 20% of the weighting: a median of $18.41 an hour, 19% below the US median of $22.66. The middle half of them earn between $16.79 and $22.69 an hour. About 860 work in the metro. That is 87.5 per 10,000 jobs, compared with 70.5 nationally, which suggests plenty of local crews to bid.
Cement masons and concrete finishers (47-2051) carry 15% of the labor weighting. BLS does not publish this trade for the Slidell metro, so we used the Louisiana statewide median: $23.64 an hour against $27.41 for the US. The middle half of them earn between $19.54 and $30.00 an hour.
Electricians (47-2111), 10% of the weighting: a median of $27.25 an hour, 10% below the US median of $30.38. The middle half of them earn between $21.18 and $30.45 an hour. About 310 work in the metro. That is 31.6 per 10,000 jobs, compared with 48.7 nationally, so expect fewer local crews to bid.
Roofers (47-2181) carry 10% of the labor weighting. BLS does not publish this trade for the Slidell metro, so we used the Louisiana statewide median: $23.44 an hour against $26.65 for the US. The middle half of them earn between $18.74 and $27.02 an hour.
Quotes come from real crews, not medians. If the carpenters on your job are paid at the 75th percentile ($28.08 an hour) instead of the median, the labor line grows by about $1,600. At the 25th percentile ($17.98) it shrinks by about $1,750. The total moves by 4.2% or 4.6%, so wages alone rarely explain a quote that is far outside our range.
For context on the local economy, BLS counts 98,240 jobs in the Slidell-Mandeville-Covington area. That makes it the 205th largest of the 300 metros we cover, with 0.06% of US employment.
| Trade | Weight | 25th pct | Median | 75th pct | US median | Ratio | Level used |
|---|---|---|---|---|---|---|---|
| Carpenters (47-2031) | 45% | $17.98 | $23.23 | $28.08 | $29.12 | 0.80 | metro |
| Cement masons and concrete finishers (47-2051) | 15% | $19.54 | $23.64 | $30.00 | $27.41 | 0.86 | state |
| Construction laborers (47-2061) | 20% | $16.79 | $18.41 | $22.69 | $22.66 | 0.81 | metro |
| Electricians (47-2111) | 10% | $21.18 | $27.25 | $30.45 | $30.38 | 0.90 | metro |
| Roofers (47-2181) | 10% | $18.74 | $23.44 | $27.02 | $26.65 | 0.88 | state |
| Blended | 100% | 0.83 | |||||
Is Slidell cheap or dear? The local comparison
Of the five closest metros, 2 are cheaper than Slidell. Hattiesburg is the lowest at about $38,000 (midpoint, 576 sq ft), 70 miles away.
| Area | Range | Midpoint | vs. here |
|---|---|---|---|
| Slidell, LAthis page | $25,600 – $51,300 | $38,400 | |
| Gulfport, MS55 miles | $25,700 – $51,600 | $38,600 | level |
| Hattiesburg, MS70 miles | $25,300 – $50,700 | $38,000 | −1% |
| Baton Rouge, LA70 miles | $27,000 – $54,200 | $40,600 | +6% |
| New Orleans, LA80 miles | $25,900 – $52,000 | $39,000 | +1% |
| Houma, LA90 miles | $25,500 – $51,100 | $38,300 | level |
| Louisiana (statewide) | $25,800 – $51,800 | $38,800 | +1% |
| United States | $29,000 – $58,100 | $43,500 | +13% |
Across 300 US metros, Slidell comes in at #263 from the top. The priciest is Honolulu, HI at $57,900; the cheapest is Brownsville, TX at $35,500 (midpoints, 576 sq ft). Statewide, Slidell is 1% below the Louisiana figure.
Other Louisiana metros
| Metro | Size | Range | Midpoint | vs. here |
|---|---|---|---|---|
| New Orleans, LA | 445,550 jobs | $25,900 – $52,000 | $39,000 | +1% |
| Baton Rouge, LA | 409,690 jobs | $27,000 – $54,200 | $40,600 | +6% |
| Lafayette, LA | 179,570 jobs | $25,700 – $51,600 | $38,600 | +1% |
| Shreveport, LA | 162,750 jobs | $25,500 – $51,100 | $38,300 | level |
| Lake Charles, LA | 101,690 jobs | $25,900 – $51,900 | $38,900 | +1% |
| Monroe, LA | 87,500 jobs | $25,300 – $50,700 | $38,000 | −1% |
Cities with a workforce like Slidell's
Big cities and small ones price differently, so here is Slidell against the 4 metros with the closest total employment.
| Metro | Size | Range | Midpoint | vs. here |
|---|---|---|---|---|
| Santa Cruz, CA | 98,500 jobs | $32,800 – $65,900 | $49,300 | +28% |
| Lynchburg, VA | 97,190 jobs | $25,500 – $51,200 | $38,400 | level |
| Springfield, IL | 100,810 jobs | $32,000 – $64,100 | $48,000 | +25% |
| Binghamton, NY | 97,030 jobs | $29,900 – $60,000 | $44,900 | +17% |
What nearby projects cost in Slidell
Because every project leans on different trades, Slidell's wage level does not move all prices equally. Against the US midpoint, garage door runs −10% and home addition −13%.
| Project | Size | Range | vs. US |
|---|---|---|---|
| Concrete slab | 400 sq ft | $2,200 – $4,650 | −10% |
| Garage door | 1 door | $620 – $3,350 | −10% |
| Concrete driveway | 600 sq ft | $3,200 – $7,950 | −13% |
| Home addition | 300 sq ft | $33,000 – $66,900 | −13% |
When to schedule detached garage in Slidell
We use NOAA's 1991-2020 climate normals for Slidell (5 miles from the city center). These are 30-year monthly averages, not forecasts.
September through June is the stretch where pouring concrete runs into the fewest weather problems in Slidell (10 of 12 months). July and August have an average daytime high of 90°F or more.
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.
Slidell gets about 66 inches of precipitation in a normal year. The wettest months are January, July and August (7.7 inches in July). Inside the workable window, October and November are the driest, at 4.2 and 4.2 inches. The station averages about 64 days a year at 90°F or above.
Does the season change the price? Probably, but we do not have a sourced seasonal price curve, so the estimator shows a year-round figure and does not adjust by month. When you collect quotes, ask whether scheduling in a slower month gets a better rate.
| Month | Avg high °F | Avg low °F | Precip (in) | For this job |
|---|---|---|---|---|
| Jan | 61 | 42 | 5.9 | Workable |
| Feb | 64 | 45 | 4.4 | Workable |
| Mar | 70 | 52 | 5.3 | Workable |
| Apr | 76 | 58 | 5.5 | Workable |
| May | 83 | 66 | 5.8 | Workable |
| Jun | 88 | 72 | 5.8 | Workable |
| Jul | 90 | 74 | 7.7 | Hot |
| Aug | 90 | 74 | 7.6 | Hot |
| Sep | 87 | 70 | 5.0 | Workable |
| Oct | 79 | 59 | 4.2 | Workable |
| Nov | 70 | 49 | 4.2 | Workable |
| Dec | 63 | 44 | 5.0 | Workable |
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Detailed detached garage report for Slidell, LA, $9
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Detached garage in Slidell: your questions
+How much does it cost to build a detached garage in Slidell?
For 576 sq ft, expect $25,600 to $51,300 in the Slidell area. A standard-spec job lands at $33,300 to $43,600. Small jobs usually cost more per sq ft and large ones less.
+What is the price per sq ft for detached garage in Slidell?
About $44 to $88.50 per sq ft for materials and labor, plus $140 to $460 for the permit if one is needed. The US range is $50 to $100.
+Is detached garage cheaper in Slidell or Gulfport?
Gulfport is 55 miles away. The midpoint for 576 sq ft there is $38,600, which is 0% more than Slidell ($38,400). Wage and materials indexes both feed that gap.
+How much of the bill is labor in Slidell?
About 47% at the midpoint, or $17,900 out of $38,400. Materials are 53% and permits 1%. Nationally, labor is 50%.
+What would 2.5-car (24x30), 720 sq ft cost in Slidell?
$31,900 to $64,000. Pick a different size in the estimator above to get your own number.
+Does detached garage need a permit in Slidell?
Often, but rules are set by your city or county building office, so call before you hire. Budget $140 to $460 for fees in the Slidell area (our national range of $150 to $500 scaled by the local price level).
+Is Slidell expensive for detached garage compared with the rest of Louisiana?
Slidell is 1% below the Louisiana statewide estimate ($38,800 at the midpoint). We cover 9 metros in Louisiana; see the state page to compare them.
+What do carpenters earn in Slidell?
The BLS median is $23.23 an hour in the Slidell area, compared with $29.12 nationally. The 25th to 75th percentile range is $17.98 to $28.08.
+What do basic and premium detached garage work cost in Slidell?
For 576 sq ft, basic work runs $25,600 to $35,900 and premium work $41,000 to $51,300. 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 Slidell?
Based on NOAA 1991-2020 normals, the comfortable months for this kind of work are September through June. October and November 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 Slidell
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).