Basic
$15 – $39 per sq ft
Gauged rectangular slate pavers in two sizes on compacted gravel and sand, swept joints, edge restraint
How Much Does Slate Patio Cost in Seattle, Washington?
Slate paving-stone patio installed on a prepared base (excavation, gravel/sand or mortar bed, joints).
Slate Patio in Seattle, Washington typically costs $17 to $46 per sq ft as of 2026. Prices reflect local labor and material rates. Use our calculator below for a detailed, ZIP-code-adjusted estimate.
Slate Patio in Seattle, Washington
$17 – $46
per sq ftPrices in Seattle are 19.0% higher than the national average for slate patio.
National average: $15 – $40 per sq ft
What you get at each price level
Standard
$17 – $46 per sq ft
Gauged slate pavers in a multi-size pattern, color-matched, compacted base, polymeric sand joints, edge restraint
Premium
$21 – $57 per sq ft
Thicker calibrated slate in a multi-size pattern, deeper compacted base, polymeric sand joints, color-enhancing sealer
Cost Breakdown in Seattle
| Component | Category | Price Range | Unit |
|---|---|---|---|
| Materials | material | $7.02 – $19 | sq ft |
| Labor | labor | $7.04 – $19 | sq ft |
| Supplies & Other | supplies | $1.87 – $4.99 | sq ft |
| Equipment & Disposal | equipment | $1.25 – $3.33 | sq ft |
Prices adjusted for Seattle local market conditions.
Cost Factors in Seattle, Washington
What Affects Pricing
- Materials ($6.75-$18.00 per square foot)
- Labor ($5.25-$14.00 per square foot)
- Supplies & Other ($15-$40 per square foot)
- Equipment & Disposal ($15-$40 per square foot)
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
- ShunShelter: Slate patio installation cost, shunshelter.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
Connect with local slate patio contractors in Seattle for personalized quotes based on your specific project.