King County, WA Prevailing Wage Rates 2026
Official public works wage determination for King County. Audits hourly base rates, mandatory fringe benefit contributions, and certified payroll requirements for commercial construction contractors.
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King County Certified Trade Pay Calculator
Audit base hourly pay, fringe benefit packages, and certified payroll totals
Official King County Trade Rate Schedule (2026)
Verified Rates| Construction Trade | Base Hourly | Fringe Benefits | Total Hourly Package | Apprentice Rate (60%) |
|---|---|---|---|---|
| Electrician (Inside Wireman) | $57.80/hr | $27.40/hr | $85.20/hr | $34.68/hr |
| Carpenter | $50.10/hr | $22.90/hr | $73.00/hr | $30.06/hr |
| Plumber / Pipefitter | $56.50/hr | $26.80/hr | $83.30/hr | $33.90/hr |
| Operating Engineer | $52.90/hr | $24.10/hr | $77.00/hr | $31.74/hr |
| Construction Laborer | $42.10/hr | $18.60/hr | $60.70/hr | $25.26/hr |
Form WH-347 & Certified Payroll Rules in King County
Under the Davis-Bacon and Related Acts (DBRA) and state prevailing wage statutes, contractors and subcontractors performing work on federally funded or state public works contracts exceeding $2,000 in King County must pay mechanics and laborers no less than the prevailing wage package set forth under General Decision WA20260002.
Contractors must submit weekly Statement of Compliance forms (Form WH-347) documenting employee work classifications, total hours worked, exact hourly rates, and fringe benefit contributions.
Apprentices may be paid below full journeyman rate only if individually registered in a bona fide apprenticeship program approved by the US Department of Labor or state apprenticeship agency.
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Davis-Bacon Prevailing Wages
Audit King County Certified Payroll Compliance
Verify 2026 Davis-Bacon trade schedules, mandatory fringe benefit contributions, and Form WH-347 compliance for public works contracts.