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Washington · Modular Building Worker · 2 counties
Modular Building Worker prevailing wage, King County group, Washington (2 counties)
L&I sets the same modular building worker rates, row for row, in 2 counties: King and Kitsap. Every figure on this page applies in each of them.
$17.13an hour, base wage + fringe benefits · Cabinet Assembly
$11.56 base wage + $5.57 fringe benefits
On Washington public works in each of these 2 counties, a modular building worker working as cabinet assembly must be paid at least $17.13 an hour. L&I's wage and benefit figures for this rate add up to $11.56, below the state minimum wage, so L&I publishes the rate at the 2026 minimum wage of $17.13.
L&I published this rate on August 2, 2010 and it took effect September 1, 2010. L&I hasn't changed it since, so it is still current in period 2026-2. Checked against L&I's wage lookup on October 24, 2026.
L&I lists 8 commercial modular building worker rates for each of these counties, from $17.13 to $17.13 an hour. See all of them.
Base wage and fringe benefits: $11.56 + $5.57
The wage is the taxable hourly rate. The other lines are what Washington law calls "usual benefits": contributions to health, pension, vacation and holiday, apprenticeship and similar plans. A contractor that doesn't provide a benefit pays its value as wages instead (RCW 39.12.010).
| Base wage (taxable) | $11.56 |
| Raised to the state minimum wage | $5.57 |
| Total straight-time hourly rate | $17.13 |
L&I's wage and benefit columns for this row add up to $11.56. That is below Washington's 2026 minimum wage, so L&I publishes the total at $17.13, the minimum wage (L&I minimum wage).
Set from: L&I wage survey (weighted average). Where a county has a collective bargaining agreement, L&I adopts its wage and benefits; with more than one, the higher rate prevails. Otherwise L&I uses wage surveys (RCW 39.12.015).
When does this rate change?
- Rates lock at the bid date. A project uses “the rates that are in effect on the date when bids by prime contractors are due”, and they stay for the life of the contract. If the contract isn't awarded within six months of the bid date, the award-date rates apply. Contracts without bids use the date they're signed (WAC 296-127-011).
- L&I publishes on the first business day of February and August, and rates take effect 30 days later. Corrections can be published at any time and also take effect 30 days later (WAC 296-127-011(1); L&I publications and corrections). L&I's next set is due February 1, 2027, effective March 3, 2027.
- L&I doesn't republish every rate each period. A rate stays until L&I changes it, so each one has its own date. This one was published August 2, 2010 and took effect September 1, 2010.
- This rate sits at the state minimum wage, which L&I applies by date. From January 1, 2027 the minimum wage is $17.73 (L&I minimum wage), and L&I's lookup already returns this rate at $17.73 for 2027 award dates.
Every modular building worker rate in the King County group
As L&I lists them. The highlighted row is the one this page leads with.
- Cabinet Assembly$17.13
- Electrician$17.13
- Equipment Maintenance$17.13
- Plumber$17.13
- Production Worker$17.13
- Tool Maintenance$17.13
- Utility Person$17.13
- Welder$17.13
| Classification | Base wage | Fringe benefits | Total rate | Effective |
|---|---|---|---|---|
| Cabinet Assembly | $11.56 | $5.57 | $17.13 | Sep 1, 2010 |
| Electrician | $11.56 | $5.57 | $17.13 | Sep 1, 2010 |
| Equipment Maintenance | $11.56 | $5.57 | $17.13 | Sep 1, 2010 |
| Plumber | $11.56 | $5.57 | $17.13 | Sep 1, 2010 |
| Production Worker | $9.40 | $7.73 | $17.13 | Sep 1, 2010 |
| Tool Maintenance | $11.56 | $5.57 | $17.13 | Sep 1, 2010 |
| Utility Person | $11.56 | $5.57 | $17.13 | Sep 1, 2010 |
| Welder | $11.56 | $5.57 | $17.13 | Sep 1, 2010 |
How the King County group compares
The main modular building worker rate in every county that has one, and how the pay splits here and in the nearest counties. All bars use the same scale.
Every county in Washington
Base wage and fringe benefits, nearby
- King County groupbase $11.56$17.13
- Pierce Countybase $8.55$17.13
- Snohomish Countybase $9.00$17.13
- Kitsap Countybase $11.56$17.13
Which county is in which modular building worker group
Every Washington county with a modular building worker rate. Counties L&I treats alike share one page; the rest have their own. You pay the rate for the county where the work is done.
| Counties | Main classification | Base wage | Total rate |
|---|---|---|---|
| Pierce County group, 27 counties: Adams, Asotin, Benton, Clallam, Clark, Columbia, Cowlitz, Ferry, Franklin, Garfield, Grant, Island, Jefferson, Klickitat, Lincoln, Okanogan, Pend Oreille, Pierce, San Juan, Skagit, Skamania, Spokane, Stevens, Wahkiakum, Walla Walla, Whatcom, Whitman | Journey Level | $8.55 | $17.13 |
| Thurston County group, 5 counties: Grays Harbor, Lewis, Mason, Pacific, Thurston | Cabinet Assembly | $9.98 | $17.13 |
| Yakima County group, 4 counties: Chelan, Douglas, Kittitas, Yakima | Journey Level | $14.11 | $17.13 |
| King County group, 2 counties: King, Kitsap | Cabinet Assembly | $11.56 | $17.13 |
| Snohomish County | Journey Level | $9.00 | $17.13 |
4 groups of counties with identical L&I rates, and 1 county with rates of its own.
Washington modular building worker prevailing wage by county, with a map
More from L&I on this rate
- L&I's prevailing wage lookup, for any county, trade and bid date
- Apprentices: registered apprentices are paid L&I's apprentice rate for the trade. Anyone without a registered agreement counts as a journey-level worker (RCW 39.12.021).
Are you being paid this rate?
Add your wage to what your employer pays into health, pension and other plans for you, and compare it with $17.13. Each contractor files an L&I-approved Statement of Intent to Pay Prevailing Wages before it's paid, and an Affidavit of Wages Paid when the job is accepted (RCW 39.12.040). On contracts over $10,000 the approved intent and L&I's contact details are posted on the job site (RCW 39.12.020).
Source
Washington State Department of Labor & Industries, prevailing wage lookup, Modular Buildings (MODU), published August 2, 2010, effective September 1, 2010: secure.lni.wa.gov/wagelookup/. L&I keeps a wage record for each county; for the row this page leads with:
- King County: L&I wage record 134563
- Kitsap County: L&I wage record 134564
Each figure comes from L&I's lookup and is checked against L&I's CSV export and a second, separate query. How we check · Download every Washington rate as CSV · Report an error