Specifications include, but are not limited to: a. Systems shall be designed and fabricated by companies normally engaged in
the manufacturing of such equipment. Products of like materials shall be
from a single supplier and the installed systems shall have a uniform
appearance throughout the project.
b. Stair and railing shall meet OSHA 1910.25 and 1910.28 regulations.
c. Stair design criteria.
i. Support a uniform live load of 100 lbs/sf and concentrated load of
300 lb distributed over 4 sq-in at the center of the span. Safety factor
shall be 3.0. Requirement applies to entire assembly and individual
ii. Maximum vertical deflection under full live load shall not exceed ¼
iii. Structures shall be rigid with no noticeable sway, deflection, or