Composite Deck costs $40.87 to $86.85 per sq ft in Detroit in 2026. For a 400 sq ft project, expect $16,348 – $34,739 installed, typically near $25,544. That is about 2% above the Michigan average.
Detroit composite deck calculator
Planning estimate. Wage index applies to the labor share only; materials held at national prices. Get three written quotes.
Why Detroit runs above the Michigan average
Construction wages in Detroit average $33.06 per hour against $31.31 statewide, so labor-heavy work prices above the Michigan norm here.
Labor is about 42% of the installed cost on this type of work, and it is the part that actually moves between markets. Materials are priced by national manufacturers and barely shift, which is why the gap between metros is narrower than wage differences alone suggest.
Composite Deck cost by project size in Detroit
| Project size | Detroit range | Typical |
|---|---|---|
| 100 sq ft | $4,087 – $8,685 | $6,386 |
| 200 sq ft | $8,174 – $17,370 | $12,772 |
| 300 sq ft | $12,261 – $26,055 | $19,158 |
| 400 sq ft | $16,348 – $34,739 | $25,544 |
| 600 sq ft | $24,522 – $52,109 | $38,315 |
| 800 sq ft | $32,696 – $69,479 | $51,087 |
| 1,000 sq ft | $40,870 – $86,848 | $63,859 |
| 1,500 sq ft | $61,305 – $130,273 | $95,789 |
Where the money goes
For a 400 sq ft project in Detroit at roughly $25,544, a typical bill splits like this:
| Line item | Share | Cost |
|---|---|---|
| Labor | 42% | $10,728 |
| Materials | 44% | $11,239 |
| Site prep & equipment | 8% | $2,043 |
| Overhead, disposal & finishing | 6% | $1,533 |
Detroit compared with other Michigan markets
| Area | Cost per sq ft | vs Detroit |
|---|---|---|
| Grand Rapids | $39.31 – $83.54 | −4% |
| Lansing | $40.10 – $85.21 | −2% |
| Flint | $40.30 – $85.64 | −1% |
| Kalamazoo | $40.25 – $85.53 | −2% |
| Michigan average | $39.93 – $84.86 | −2% |
Ground conditions and code in Detroit
Permits in Detroit
A residential permit for this work typically runs around $400 in Michigan. Permit cost is rarely included in a contractor quote, so budget it separately and confirm scope with the Detroit building department before work begins.
Hiring in Detroit
Get three written, itemised quotes from licensed and insured contractors, each specifying the same scope and grade of material. Ask for local references and check the licence is current in Michigan.
Frequently asked questions
How much does composite deck cost in Detroit?
In 2026, composite deck costs $40.87 to $86.85 per sq ft in Detroit. For a 400 sq ft project, the installed total typically lands between $16,348 and $34,739.
Is Detroit more expensive than the rest of Michigan?
Yes. Detroit runs about 2% above the Michigan average, because local construction wages ($33.06/hr) sit above the statewide figure of $31.31/hr.
Do I need a permit in Detroit?
Most work of this type and value requires a permit. Budget around $400 in Michigan and allow extra time for review in metro jurisdictions.
How do I compare quotes in Detroit?
Get three written, itemised quotes covering identical scope and materials. A bid far below the others usually signals a reduced specification rather than better value.
Nearby markets
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