Composite Deck costs $41.64 to $88.48 per sq ft in Spokane in 2026. For a 400 sq ft project, expect $16,655 – $35,392 installed, typically near $26,023. That is about 6% below the Washington average.
Spokane composite deck calculator
Planning estimate. Wage index applies to the labor share only; materials held at national prices. Get three written quotes.
Why Spokane runs below the Washington average
Construction wages in Spokane average $34.50 per hour against $39.60 statewide. Spokane sits below the Washington average because the statewide figure is pulled up by higher-wage metros elsewhere in the state.
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 Spokane
| Project size | Spokane range | Typical |
|---|---|---|
| 100 sq ft | $4,164 – $8,848 | $6,506 |
| 200 sq ft | $8,327 – $17,696 | $13,012 |
| 300 sq ft | $12,491 – $26,544 | $19,517 |
| 400 sq ft | $16,655 – $35,392 | $26,023 |
| 600 sq ft | $24,982 – $53,088 | $39,035 |
| 800 sq ft | $33,310 – $70,783 | $52,047 |
| 1,000 sq ft | $41,637 – $88,479 | $65,058 |
| 1,500 sq ft | $62,456 – $132,719 | $97,587 |
Where the money goes
For a 400 sq ft project in Spokane at roughly $26,023, a typical bill splits like this:
| Line item | Share | Cost |
|---|---|---|
| Labor | 42% | $10,930 |
| Materials | 44% | $11,450 |
| Site prep & equipment | 8% | $2,082 |
| Overhead, disposal & finishing | 6% | $1,561 |
Spokane compared with other Washington markets
| Area | Cost per sq ft | vs Spokane |
|---|---|---|
| Seattle | $45.70 – $97.12 | +10% |
| Kennewick | $44.54 – $94.64 | +7% |
| Bremerton | $43.63 – $92.71 | +5% |
| Bellingham | $44.24 – $94.01 | +6% |
| Washington average | $44.37 – $94.28 | +7% |
Ground conditions and code in Spokane
Permits in Spokane
A residential permit for this work typically runs around $700 in Washington. Permit cost is rarely included in a contractor quote, so budget it separately and confirm scope with the Spokane building department before work begins.
Hiring in Spokane
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 Washington.
Frequently asked questions
How much does composite deck cost in Spokane?
In 2026, composite deck costs $41.64 to $88.48 per sq ft in Spokane. For a 400 sq ft project, the installed total typically lands between $16,655 and $35,392.
Is Spokane more expensive than the rest of Washington?
No. Spokane actually runs about 6% below the Washington average. Local construction wages are $34.50/hr against $39.60/hr statewide.
Do I need a permit in Spokane?
Most work of this type and value requires a permit. Budget around $700 in Washington and allow extra time for review in metro jurisdictions.
How do I compare quotes in Spokane?
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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