King County, WA Parking Rules: Commercial & Oversized Vehicles (2026)
Key Facts
- Width trigger
- Over 80 inches wide overall
- Restricted hours
- Midnight to 6:00 a.m.
- Base penalty
- $20 traffic infraction
- Jurisdiction
- Unincorporated King County only
Summary
In unincorporated King County, parking a commercial vehicle wider than 80 inches on any county road between midnight and 6 a.m. is a traffic infraction, punishable by a $20 fine.
Except when necessary to avoid conflict with traffic or in compliance with the law or at the direction of a deputy or official traffic control device, it is unlawful for any person to park a commercial vehicle that is more than eighty inches wide overall on any county road or portion of county road between midnight and 6:00 a.m.
Full Breakdown
King County Code 14A.50.040 bans parking a commercial vehicle over 80 inches wide overall on any county road between midnight and 6:00 a.m., unless needed to avoid a traffic conflict, comply with law, or follow a deputy's or traffic-control device's direction. The rule applies only within unincorporated King County -- Seattle, Bellevue, Kent, Renton, Federal Way, Auburn, Redmond, Kirkland, Sammamish, Burien, Shoreline and Issaquah enforce their own municipal parking codes for oversized vehicles. There's no broader daytime ban or size cap on ordinary trucks, campers or RVs under this section -- only overnight parking of wide commercial vehicles is restricted.
Violations & Fines
Violating K.C.C. 14A.50.040 is a traffic infraction carrying a $20 base monetary penalty under K.C.C. 14A.50.180; deputies may also direct the vehicle to move.
Frequently Asked Questions
Does this rule apply inside Seattle or Bellevue?
Can I park a wide commercial vehicle during the day?
Sources & Official References
Other rules in King County
Compare King County to another location·View the Washington parking rules overview
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