Basic
$243 – $681 each
Single natural flagstone tread about 2 in. thick on a mortared stone riser over compacted gravel, set level and stable
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Rendering: BuildX
How Much Does Flagstone Step Cost in Seattle, Washington?
Build one outdoor flagstone step (stone tread and riser on a compacted or mortared base), per step.
Flagstone Step in Seattle, Washington typically costs $286 to $802 each as of 2026. Prices reflect local labor and material rates. Use our calculator below for a detailed, ZIP-code-adjusted estimate.
Flagstone Step in Seattle, Washington
$286 – $802
eachPrices in Seattle are 19.0% higher than the national average for flagstone step.
National average: $250 – $700 each
What you get at each price level
Standard
$286 – $802 each
2 in. flagstone tread with a natural edge over a stone-faced mortared riser on a compacted gravel base
Rendering: BuildX
Find a pro to do thisPremium
$358 – $1,002 each
Selected single-piece 2 in. flagstone tread with a rock-faced edge on a stone-faced mortared riser over a compacted gravel base
Rendering: BuildX
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Cost Breakdown in Seattle
| Component | Category | Price Range | Unit |
|---|---|---|---|
| Materials | material | $118 – $328 | each |
| Labor | labor | $117 – $328 | each |
| Supplies & Other | supplies | $31 – $87 | each |
| Equipment & Disposal | equipment | $21 – $58 | each |
Prices adjusted for Seattle local market conditions.
Cost Factors in Seattle, Washington
What Affects Pricing
- Materials ($113.00-$315.00 per unit)
- Labor ($87.00-$245.00 per unit)
- Supplies & Other ($30.00-$84.00 per unit)
- Equipment & Disposal ($20.00-$56.00 per unit)
Local Price Adjustments
Material costs4.0% above avg
Labor costs34.0% above avg
Labor costs in Seattle run proportionally higher than materials, which may favor material-heavy solutions.
Frequently Asked Questions
References
- Citadel Stone: Natural Stone Steps Cost, citadelstone.us, retrieved Nov 2026
- Stones Direct: cost of stone steps, stonesdirect.com, retrieved Nov 2026
- Construction wages by metro and rural area, used for the labor adjustment by ZIP code, U.S. Bureau of Labor Statistics, Occupational Employment and Wage Statistics, May 2025
- Regional price parities for goods, used for the materials adjustment by ZIP code, U.S. Bureau of Economic Analysis, 2024
Get Free Estimates in Seattle
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