Scaffold & Sidewalk Shed: Renton vs Seattle
How do scaffold & sidewalk shed rules compare between Renton, WA and Seattle, WA?
Renton has fewer restrictions than Seattle.
Renton, WA
King County
Renton follows the Washington State Building Code and WAC 296-874 for scaffolding. Scaffolds tied to permits fall under the building permit, and right-of-way use needs a Public Works permit.
View full Renton rules →Seattle, WA
King County
Seattle requires permits for scaffolding erected on public rights-of-way through the Seattle Department of Transportation (SDOT). The Seattle Building Code and Washington Industrial Safety and Health Act (WISHA) establish safety standards for scaffold construction, inspection, and use. All scaffolding must comply with OSHA and L&I fall protection standards.
View full Seattle rules →Key Facts Comparison
| Fact | Renton | Seattle |
|---|---|---|
| Governing code | IBC Chapter 33 and WAC 296-874 | - |
| Fall protection | Required above 10 feet | - |
| Guardrail height | 42 inches with midrail and toe board | - |
| Right-of-way | Street use permit from Public Works | - |
| Contact | CED Permits (425) 430-7200 | - |
| SDOT Permit | - | Required for scaffolding in public right-of-way |
| State Standard | - | WAC 296-874 Scaffolds |
| Fall Protection | - | Required above 10 feet |
| Competent Person | - | Required to supervise erection and dismantling |
| Inspections | - | Before each work shift |
Highlighted rows indicate differences between cities.
Renton FAQ
Do I need a separate scaffold permit in Renton?
Scaffolding is typically covered under the primary building permit. A street use permit is required only when the scaffold occupies public right-of-way.
Who inspects worker safety on scaffolds?
Washington L and I (DOSH) enforces WAC 296-874 worker safety rules, separate from city building inspections.
Seattle FAQ
Do I need a permit for scaffolding in Seattle?
Yes. A Street Use permit from SDOT is required for scaffolding in the public right-of-way. The Seattle Building Code also requires compliance with scaffold standards for all construction sites.
What safety standards apply to scaffolding in Seattle?
Scaffolding must comply with WAC 296-874 (Washington scaffold standards), OSHA 29 CFR 1926 Subpart L, and the Seattle Building Code. A competent person must supervise erection and daily inspections are required.
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