Kirkland, WA Building Safety: Scaffold & Sidewalk Shed (2026)

Scaffold use in Kirkland is governed by the Washington State Building Code adopted under RCW 19.27 and the International Building Code, together with workplace safety rules enforced by the Washington Department of Labor and Industries under WAC 296-874. Building permits are required for any scaffold erected as part of a project over 10 feet in height or attached to a structure, and the permit drawings must include load calculations, tie-in points, and guardrails at the working deck. Scaffolds placed in the public right-of-way, including sidewalks along Kirkland Avenue, Park Lane, and Market Street, need a separate right-of-way use permit from Kirkland Public Works with pedestrian canopy protection, signage, and ADA-accessible detour paths. All scaffolds must include toeboards, midrails, and 42-inch top rails; planking must be fully covered and secured; and a competent person must inspect the scaffold daily before each shift. Electrical clearance of at least 10 feet from energized overhead lines is mandatory under WAC 296-874-20056. Violations can result in stop-work orders, WISHA citations, and civil penalties under Kirkland Municipal Code Chapter 1.12 code enforcement. Contact Kirkland Building Division at (425) 587-3000 to confirm permit thresholds for your project.