3M™ DBI-SALA® Confined Space HC (High Capacity) Deck Mount Base is constructed of galvanised steel and is designed to be installed through and clamp to flooring ranging in thickness from 13mm (.51 in) to 90mm (3.54″) using included mounting hardware. When used as part of our complete system, this base meets the requirements of EN795:2012, EN1496:2006, CEN/TS 16415: 2013, and AS/NZS 5532.