PK Structures Mezzanine Specifications

Stair: Stair assembly will have bar grate treads factory welded to stringers. Stair width shall not be less than 36”. Treads will be designed with a completely closed riser closed design as defined by the 2006 IBC. Maximum rise per tread shall not exceed 7”. Minimum run per tread shall not be less than 11”. ................
................