PDFWAC 296-307-26015
Strength requirements for fixed stairs.
Fixed stairways must be designed and constructed to carry a load of five times the normal live load anticipated, and must be at least strong enough to carry safely a moving concentrated load of 1,000 pounds.
[Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050 and 49.17.060. WSR 21-04-128, § 296-307-26015, filed 2/2/21, effective 3/8/21. WSR 97-09-013, recodified as § 296-307-26015, filed 4/7/97, effective 4/7/97. Statutory Authority: RCW 49.17.040, [49.17.]050 and [49.17.]060. WSR 96-22-048, § 296-306A-26015, filed 10/31/96, effective 12/1/96.]