US lawWashingtonRegulationsTitle 296 — LABOR AND INDUSTRIES, DEPARTMENT OFChapter 296-24 — GENERAL SAFETY AND HEALTH STANDARDS296-24-76519WAC 296-24-76519WAC 296-24-76519. Vertical clearanceLast amended: 2016Year: 2026Length: 27 wordsOfficial source You must ensure that vertical clearance above any stair tread to an overhead obstruction is at least 7 feet measured from the leading edge of the tread.PreviousWAC 296-24-76515NextWAC 296-24-76521