Basic
$9.73 – $24 per sq ft
Gauged 12x12 in. slate tile in mixed gray-green tones, modified thinset, sanded grout, penetrating sealer
How Much Does Slate Flooring Cost in Seattle, Washington?
Natural slate tile floor installed over a prepared subfloor, including setting materials, grout and sealing.
Slate Flooring in Seattle, Washington typically costs $11 to $29 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 Flooring in Seattle, Washington
$11 – $29
per sq ftPrices in Seattle are 19.0% higher than the national average for slate flooring.
National average: $10 – $25 per sq ft
What you get at each price level
Standard
$11 – $29 per sq ft
Gauged 12x12 in. select slate in more even charcoal tones, modified thinset, sanded grout, two coats of sealer
Premium
$14 – $36 per sq ft
Calibrated 12x12 in. select slate, color-sorted to deep charcoal, medium-bed thinset, sanded grout, color-enhancing sealer
Cost Breakdown in Seattle
| Component | Category | Price Range | Unit |
|---|---|---|---|
| Materials | material | $4.68 – $12 | sq ft |
| Labor | labor | $4.69 – $12 | sq ft |
| Supplies & Other | supplies | $1.25 – $3.12 | sq ft |
| Equipment & Disposal | equipment | $0.83 – $2.08 | sq ft |
Prices adjusted for Seattle local market conditions.
Slate Flooring photo examples
Natural slate tile floor in a bathroom with wood vanity
Photo: bgautrea · CC BY-SA 2.0 · Source
Find a pro to do this
Design styles
See how slate flooring looks in each style, with photos of real projects by working designers.
Seattle style: Pacific Northwest modern and Japandi
Seattle design responds to gray light and wet climate: warm wood, large windows, natural texture and a clutter-free plan. Japandi, the Japanese-Scandinavian blend, is widely used locally and often paired with Northwest craft.
Work by Seattle designers first, then the styles Seattle draws from.
Built from
Modern living room
Photo: Mutuus Studio · Profile
Scandinavian kitchen
Photo: Dorling Design Studio · Profile
Scandinavian living room
Photo: Dorling Design Studio · Profile
Mid-Century Modern living room
Photo: Seattle Scandinavian · Profile
Mid-Century Modern living room
Photo: Seattle Scandinavian · Profile
Farmhouse (Modern Farmhouse) kitchen
Photo: Dorling Design Studio · Profile
Modern interior
Photo: Collarte Interiors · Profile
Modern interior
Photo: Studio Novo · Profile
Modern interior
Photo: SUBU design architecture · Profile
Cost Factors in Seattle, Washington
What Affects Pricing
- Materials ($4.50-$11.25 per square foot)
- Labor ($3.50-$8.75 per square foot)
- Supplies & Other ($1.20-$3.00 per square foot)
- Equipment & Disposal ($0.80-$2.00 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
- Urban Customs: Natural stone flooring prices 2025, urbancustomsaz.com, retrieved Nov 2026
- SmartStones: Slate price guide, smartstones.us, 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 flooring contractors in Seattle for personalized quotes based on your specific project.