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

Renton adopts the Washington State Building Code (RCW 19.27) and International Building Code Chapter 33 for temporary scaffolding used during construction. Federal OSHA and Washington L and I standards under WAC 296-874 apply to all job-site scaffolds, requiring guardrails at 42 inches, midrails, toe boards, and fall protection for workers on platforms more than 10 feet above lower levels. Scaffolds must be erected on firm foundations, fully planked, and inspected by a competent person before each shift. Scaffolds that encroach onto sidewalks, travel lanes, or other public rights-of-way in downtown Renton or along arterials require a street use or right-of-way use permit from the Renton Public Works Transportation Division, with pedestrian protection such as covered walkways mandatory where foot traffic passes below. Scaffolds within 10 feet of energized power lines must meet clearance rules under WAC 296-45. Permits tie into the primary building permit; contact Community and Economic Development at (425) 430-7200.