Krost’s Rack Supported Mezzanine Floors are a very practical way of utilising the – often wasted – space above racking. This form of mezzanine is built from pallet racking materials and is generally the most cost effective way of building a mezzanine. Storage is gained with an open deck above the structure, and the support for the deck is usable pallet racking that can be left open or utilised as shelving.