Basic
$4.64 – $8.01 per sq ft
2x4 studs at 16 in. on center, pressure-treated bottom plate fastened to the slab, top plate to joists, fireblocking as required

Frame Basement Walls: national installed price range, materials and labor breakdown, and local pricing by ZIP code.
Frame Basement Walls in Seattle, Washington typically costs $5.46 to $9.42 per sq ft as of 2026. Prices reflect local labor and material rates. Use our calculator below for a detailed, ZIP-code-adjusted estimate.
Prices in Seattle are 19.0% higher than the national average for frame basement walls.
National average: $4.77 – $8.23 per sq ft
$4.64 – $8.01 per sq ft
2x4 studs at 16 in. on center, pressure-treated bottom plate fastened to the slab, top plate to joists, fireblocking as required
$5.46 – $9.42 per sq ft
Straight 2x4 studs at 16 in. on center, treated plate on a foam sill gasket, wall held off the foundation, fireblocking
$6.83 – $12 per sq ft
Selected kiln-dried 2x4 studs at 16 in., treated plate on sill gasket, held off foundation, blocking for shelves and TV mounts
| Component | Category | Price Range | Unit |
|---|---|---|---|
| Materials | material | $2.24 – $3.85 | sq ft |
| Labor | labor | $2.24 – $3.86 | sq ft |
| Supplies & Other | supplies | $0.59 – $1.03 | sq ft |
| Equipment & Disposal | equipment | $0.40 – $0.69 | sq ft |
Labor costs in Seattle run proportionally higher than materials, which may favor material-heavy solutions.
BuildX Pro researches and reviews the national price range for Frame Basement Walls, then adjusts it to your ZIP code for local labor and material costs using the public data below. Last checked Sep 2026.
Connect with local frame basement walls contractors in Seattle for personalized quotes based on your specific project.