US lawWashingtonRegulationsTitle 296 — LABOR AND INDUSTRIES, DEPARTMENT OFChapter 296-24 — GENERAL SAFETY AND HEALTH STANDARDS296-24-76509WAC 296-24-76509WAC 296-24-76509. Stair widthLast amended: 2016Year: 2026Length: 10 wordsOfficial source Fixed stairways must have a minimum width of 22 inches.PreviousWAC 296-24-76507NextWAC 296-24-76511