Composite deck cost in Detroit, MI
Local estimate from BLS wage data and BEA price levels. Reviewed Nov 4, 2026.
- Typical range (300 sq ft)
- $12,800 – $25,700
- Per sq ft
- $42.50 – $85
- before permit
- Versus US midpoint
- +6%
- US $18,100
- Rank of 300 metros
- #50
- 1 = most expensive
Detroit homeowners pay roughly $12,800 to $25,700 to build a composite deck at 300 sq ft, or $42.50 to $85 per sq ft (permit not included). Against the US midpoint, Detroit is 6% higher. Carpenters earn a median of $31.64 an hour in the Detroit area, 9% above the US median of $29.12.
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Estimated cost for 300 sq ft in Detroit, MI, standard level
$16,700 to $21,800
About $55.50 to $72.50 per sq ft before permits. Labor is about 62% of the bill.
| Part | Low | High |
|---|---|---|
| Materials | $6,150 | $8,050 |
| Labor | $10,400 | $13,600 |
| Permits and fees | $80 | $120 |
| Total | $16,700 | $21,800 |
Cost breakdown for 300 sq ft in Detroit, MI
| Part of the job | Low | Midpoint | High | Share |
|---|---|---|---|---|
| Materials | $4,750 | $7,100 | $9,500 | 37% |
| Labor | $8,000 | $12,000 | $16,000 | 62% |
| Permits and fees | $50 | $100 | $150 | 1% |
| Total | $12,800 | $19,200 | $25,700 | 100% |
What is behind the Detroit number
We price the labor side from BLS wage data for 2 trades: carpenters at 80%, construction laborers at 20%. Weighted together, Detroit wages are 1.11 times the national level. Labor makes up about 62% of the midpoint estimate (60% at national prices).
On the materials line, the BEA goods price index for the Detroit metro is 98.8 (US = 100). The midpoint materials bill for 300 sq ft comes to $7,100, compared with $7,200 at national prices. Permit and inspection fees are scaled by the broader index (100.3) and land at $50 to $150.
Local wages behind the labor line
Wages are the part of this estimate that changes most from town to town. 2 trades carry the job here, and each is compared with its US median. The weighted result for Detroit is 1.11 times the national level.
For carpenters (47-2031, weighted 80%) the local median is $31.64 an hour, which is 9% above the national $29.12. The middle half of them earn between $25.05 and $38.49 an hour. BLS counts 7,610 of them working in the area, 40.0 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 $27.61 an hour, 22% above the US median of $22.66. The middle half of them earn between $22.25 and $30.04 an hour. About 11,610 work in the metro. That is 61.0 per 10,000 jobs, compared with 70.5 nationally, so the supply of crews looks typical.
Quotes come from real crews, not medians. If the carpenters on your job are paid at the 75th percentile ($38.49 an hour) instead of the median, the labor line grows by about $2,050. At the 25th percentile ($25.05) it shrinks by about $1,950. The total moves by 10.6% or 10.2%, so wages alone rarely explain a quote that is far outside our range.
For context on the local economy, BLS counts 1,904,530 jobs in the Detroit-Warren-Dearborn area. That makes it the 15th largest of the 300 metros we cover, with 1.22% of US employment.
| Trade | Weight | 25th pct | Median | 75th pct | US median | Ratio | Level used |
|---|---|---|---|---|---|---|---|
| Carpenters (47-2031) | 80% | $25.05 | $31.64 | $38.49 | $29.12 | 1.09 | metro |
| Construction laborers (47-2061) | 20% | $22.25 | $27.61 | $30.04 | $22.66 | 1.22 | metro |
| Blended | 100% | 1.11 | |||||
Cost by quality level and size in Detroit
Three bands are cut from the same cited range and localized for Detroit 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
$12,800 to $17,900
Entry-level composite boards, low deck, simple shape
Standard
$16,700 to $21,800
Mid-grade capped boards with railing and stairs
Premium
$20,500 to $25,700
Premium capped or PVC boards, multi-level, hidden fasteners
| Size | Basic | Standard | Premium |
|---|---|---|---|
| 10x12 (120 sq ft) | $5,150 – $7,250 | $6,700 – $8,800 | $8,250 – $10,400 |
| 12x12 (144 sq ft) | $6,150 – $8,650 | $8,050 – $10,500 | $9,900 – $12,400 |
| 16x20 (320 sq ft) | $13,700 – $19,100 | $17,800 – $23,300 | $21,900 – $27,400 |
| 20x20 (400 sq ft) | $17,100 – $23,900 | $22,200 – $29,000 | $27,300 – $34,200 |
What nearby projects cost in Detroit
Because every project leans on different trades, Detroit's wage level does not move all prices equally. Against the US midpoint, gutters runs +7% and wood deck +4%.
| Project | Size | Range | vs. US |
|---|---|---|---|
| Wood deck | 300 sq ft | $7,850 – $15,800 | +4% |
| Concrete patio | 300 sq ft | $1,300 – $4,300 | +6% |
| Paver patio | 300 sq ft | $3,200 – $5,800 | +6% |
| Gutters | 160 linear ft | $1,400 – $4,450 | +7% |
Why two Detroit quotes can differ
Board grade
Composite materials run $16-$32 per sq ft and the installed price is $40-$80 per sq ft, including the substructure (HomeGuide).
Labor
Labor for composite is $24-$48 per sq ft, higher than wood because the boards need extra parts and more careful assembly.
Drainage
Ground-level decks over poorly draining yards may need $1,000-$4,000 of drainage work first.
Extras that change the Detroit total
Extras are quoted nationally and then scaled to Detroit by the average of the local wage index (1.11) and goods index (0.99), a factor of 1.05. Tick any of them in the estimator above to add them to your total. Treat these as planning figures: an add-on touches different trades than the main job, so the scaling is an approximation.
| Add-on | Local range |
|---|---|
| Add a deck railing (approx. 0.3 ft per sq ft) | $1,900 – $5,650 |
How Detroit compares
Same job, same size (300 sq ft), priced for the nearest metros. Detroit is the priciest of the group. Toledo is the cheapest at $17,900.
| Area | Range | Midpoint | vs. here |
|---|---|---|---|
| Detroit, MIthis page | $12,800 – $25,700 | $19,200 | |
| Flint, MI35 miles | $12,100 – $24,300 | $18,200 | −5% |
| Ann Arbor, MI45 miles | $12,300 – $24,700 | $18,500 | −4% |
| Saginaw, MI60 miles | $12,000 – $24,000 | $18,000 | −7% |
| Lansing, MI70 miles | $12,400 – $24,900 | $18,600 | −3% |
| Toledo, OH85 miles | $11,900 – $23,800 | $17,900 | −7% |
| Michigan (statewide) | $12,000 – $24,100 | $18,100 | −6% |
| United States | $12,100 – $24,200 | $18,100 | −6% |
Across 300 US metros, Detroit comes in at #50 from the top. The priciest is Honolulu, HI at $25,200; the cheapest is Brownsville, TX at $13,500 (midpoints, 300 sq ft). Statewide, Detroit is 6% above the Michigan figure.
Other Michigan metros
| Metro | Size | Range | Midpoint | vs. here |
|---|---|---|---|---|
| Grand Rapids, MI | 598,260 jobs | $11,600 – $23,300 | $17,400 | −9% |
| Ann Arbor, MI | 219,730 jobs | $12,300 – $24,700 | $18,500 | −4% |
| Lansing, MI | 217,180 jobs | $12,400 – $24,900 | $18,600 | −3% |
| Flint, MI | 135,040 jobs | $12,100 – $24,300 | $18,200 | −5% |
| Kalamazoo, MI | 121,790 jobs | $11,900 – $23,900 | $17,900 | −7% |
| Saginaw, MI | 80,000 jobs | $12,000 – $24,000 | $18,000 | −7% |
Cities with a workforce like Detroit's
Big cities and small ones price differently, so here is Detroit against the 4 metros with the closest total employment.
| Metro | Size | Range | Midpoint | vs. here |
|---|---|---|---|---|
| Minneapolis, MN | 1,951,650 jobs | $13,900 – $27,900 | $20,900 | +9% |
| Riverside, CA | 1,716,760 jobs | $13,500 – $27,000 | $20,200 | +5% |
| Seattle, WA | 2,086,210 jobs | $14,100 – $28,300 | $21,200 | +10% |
| Denver, CO | 1,609,350 jobs | $12,600 – $25,200 | $18,900 | −2% |
When to schedule composite deck in Detroit
We use NOAA's 1991-2020 climate normals for Detroit City Ap (5 miles from the city center). These are 30-year monthly averages, not forecasts.
March through November is the stretch where exterior installation runs into the fewest weather problems in Detroit (9 of 12 months). January, February and December have an average daytime high under 45°F.
In January, February and December the average high stays below 45°F. Sealants, adhesives and some materials, such as vinyl, are harder to install well in the cold, and short daylight cuts the working day.
Detroit gets about 30 inches of precipitation in a normal year. The wettest months are May, June and July (3.5 inches in May). Inside the workable window, March and November are the driest, at 2.0 and 2.2 inches. The station averages about 13 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 | 32 | 20 | 1.4 | Cold |
| Feb | 35 | 21 | 1.4 | Cold |
| Mar | 45 | 28 | 2.0 | Workable |
| Apr | 58 | 39 | 2.8 | Workable |
| May | 70 | 50 | 3.5 | Workable |
| Jun | 79 | 60 | 3.1 | Workable |
| Jul | 84 | 65 | 3.2 | Workable |
| Aug | 81 | 64 | 3.1 | Workable |
| Sep | 74 | 56 | 3.1 | Workable |
| Oct | 61 | 45 | 2.3 | Workable |
| Nov | 48 | 34 | 2.2 | Workable |
| Dec | 37 | 26 | 1.7 | Cold |
Get 3 local quotes
Tell us about the job and we will try to connect you with up to three local contractors for written quotes. It is free and you are under no obligation to hire. Your estimate of $16,700 to $21,800 for Detroit, MI is attached.
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Multi-page report for Detroit, MI: low, typical and high cost, a line-item breakdown of materials and labor by trade, permit notes, the best months to schedule, a quote comparison sheet, red flags, questions for contractors, checklists and every source. Save your estimate above, preview page 1 free, and unlock the full report for $9 one-time, or get every report with CostLocal Pro.
Composite deck in Detroit: your questions
+How much does it cost to build a composite deck in Detroit?
For 300 sq ft, expect $12,800 to $25,700 in the Detroit area. A standard-spec job lands at $16,700 to $21,800. Small jobs usually cost more per sq ft and large ones less.
+What is the price per sq ft for composite deck in Detroit?
About $42.50 to $85 per sq ft for materials and labor, plus $50 to $150 for the permit if one is needed. The US range is $40 to $80.
+Is composite deck cheaper in Detroit or Flint?
Flint is 35 miles away. The midpoint for 300 sq ft there is $18,200, which is 5% less than Detroit ($19,200). Wage and materials indexes both feed that gap.
+How much of the bill is labor in Detroit?
About 62% at the midpoint, or $12,000 out of $19,200. Materials are 37% and permits 1%. Nationally, labor is 60%.
+What would 16x20 (320 sq ft) cost in Detroit?
$13,700 to $27,400. Pick a different size in the estimator above to get your own number.
+Does composite deck need a permit in Detroit?
Often, but rules are set by your city or county building office, so call before you hire. Budget $50 to $150 for fees in the Detroit area (our national range of $50 to $150 scaled by the local price level).
+Is Detroit expensive for composite deck compared with the rest of Michigan?
Detroit is 6% above the Michigan statewide estimate ($18,100 at the midpoint). We cover 10 metros in Michigan; see the state page to compare them.
+What do carpenters earn in Detroit?
The BLS median is $31.64 an hour in the Detroit area, compared with $29.12 nationally. The 25th to 75th percentile range is $25.05 to $38.49.
+What do basic and premium composite deck work cost in Detroit?
For 300 sq ft, basic work runs $12,800 to $17,900 and premium work $20,500 to $25,700. Basic means: entry-level composite boards, low deck, simple shape. Premium means: premium capped or PVC boards, multi-level, hidden fasteners.
+When is the best time to build a composite deck in Detroit?
Based on NOAA 1991-2020 normals, the comfortable months for this kind of work are March through November. March 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.
+What does "add a deck railing" add in Detroit?
$1,900 to $5,650 for 300 sq ft, from a national range scaled by the local wage and goods indexes.
Composite deck near Detroit
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 Composite Decking Cost? (2026) (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