scope:

This standard was written specify minimum requirements for the structural design, testing, and utilization of industrial steel storage racks. It applies to industrial steel storage racks, movable-shelf racks, rack-supported systems, and storage racks associated with automated storage and retrieval systems (ASRSs; also known as "stacker racks"), constructed of cold formed and/or hot-rolled steel structural members. Such rack types also include push-back rack, pallet flow rack, case-flow rack, pick modules, and rack-supported platforms. This standard is also intended to be applied to the design of the storage rack portion of any rack structure that provides support to the exterior walls and roof, except as noted. It does not apply to other types of racks, such as drive-in or drive through racks, cantilever racks (see ANSI MH16.3 for guidance on cantilever racks), portable racks, or racks made of material other than steel.

ANSI MH16.1-2023 replaces ANSI MH16.1-2021 revision. It updates seismic provisions to align with ASCE/SEI 7-2022, including use of software to obtain seismic data and new methods to obtain the seismic response coefficients. It also includes revisions to the cantilever testing provisions and to the cyclic beam-to-column testing provisions in this section, so that either test can be used to determine beam design spring constants.