Section SPS 375.20 - Railings(1) Railings shall be provided on all open sides of platforms and stairways, and on both sides of balanced stairways. Either a railing or a handrail fastened to wall shall be provided on each side of all "B" type fire escape stairways. Railings shall be at least 3 feet high, measuring vertically from floor of platform or from nose of step.(2) Every railing shall have posts, not more than 5 feet apart, made of not less than 11/2 x 11/2 x 1/4 inch angles or tees, or 11/ 4 inch pipe; top rail not less than 11/4 x 11/4 x 1/4 inch angle or equivalent; center rail not less than 11/4 x 5/16 flat bar or equivalent. All connections shall be such as to make the railing stiff; 2 bolts (3/8 inch or larger) shall be used at the foot of each post wherever possible, or at least 1/2 inch bolt shall be used. Railings shall be continuous. No projections on the inside of the railing shall be permitted. Where a railing returns to the wall, it shall be fastened thereto with a through bolt (at least 5/8 inch diameter), nut, and washer; or (in reinforced concrete) with an approved insert; or the railing shall be made equally secure with a diagonal brace extending at least 3 feet horizontally and 3 feet vertically.(3) All outside railings which are more than 60 feet above grade shall be at least 6 feet high, measuring vertically from floor or platform or from nose of step. Such railings shall be of special design approved by the department, having not less than 4 longitudinal rails, and vertical lattice bars not more than 8 inches apart, and proper stiffening braces or brackets.Wis. Admin. Code Department of Safety and Professional Services SPS 375.20
1-2-56; renum. and am., Register, September, 1974, No. 225, eff. 10-1-74.