Deck Boards cost in Washington
Planning a deck in Washington? Local prices run about 12% above the national average. Here's a regional estimate to size up your budget — then run your exact numbers in the calculator.
Washington estimate
per square foot installed
- Typical low
- $35
- Typical high
- $44
- vs. national avg
- +12%
Regional estimate from cost indices. Not a quote — confirm locally.
Typical project costs in Washington
Applying the Washington unit price to common project sizes:
| Project size | Estimated range |
|---|---|
| Compact 120 ft² | $4,140 – $5,268 |
| Typical 300 ft² | $10,350 – $13,170 |
| Large 600 ft² | $20,700 – $26,340 |
Ranges multiply the regional unit price by representative quantities. Use the calculator for your actual dimensions, materials, and pricing.
Compare local pros for a deck in Washington
An estimate gets you a budget. A few competing quotes get you the real price. Tell us about the job and we'll help you find vetted contractors nearby.
How we estimate Washington pricing
We start from a US national average of $35 per square foot installed and apply Washington's regional cost index of 1.12 (where 1.00 is the national average). These indices reflect broad differences in labor and material costs across the West, and are directional — local quotes are the source of truth. For the full breakdown and to plug in your own measurements, use the Deck Board Calculator.