Double deep pallet racking is constructed to store two pallets deep or four pallets deep in a double entry racking. The system requires the use of a special reach truck with either dual pantograph or sliding fork attachments. Double deep guide rails can be fitted to the upper levels of racking by simple connection to standard beams to help forklift operations. Advantages include: A. Economical; B. Many of the benefits of selective pallet racking; C. Increased storage density; D. Provide maximum efficiency when multiple pallets of each product line are stored.