This document specifies the structural design requirements applicable to all types of adjustable beam pallet rack systems fabricated from steel members intended for the storage of unit loads and subject to predominantly static loads. Both un-braced and braced systems are included. This document gives guidelines for the design of clad rack buildings where requirements are not covered in the EN 1993 series. The requirements of this document also apply to ancillary structures, where rack components are employed as the main structural members. This document does not cover other generic types of storage structures. Specifically, this document does not apply to mobile storage systems, drive-in, drive-through, pallet live storage, push back, shuttle systems, systems where two or more cranes operates one above another in the same aisle and cantilever racks or static steel shelving systems. For the specific design of adjustable pallet racking for use in seismic areas, this document is to be used in combination with EN 16681.