Steel, tubing, bars, round steel, etc., available in any length and specification. A planning for telescopic cantilever racks is possible in storage areas with overhead cranes. The racks feature multi-level telescopic cantilever structures, with two positions on each level, and the load capacity of a single position can be chosen between 2 tons to 8 tons. A set of double-sided telescopic cantilever racks starts with a storage capacity of 20 tons and can go up to hundreds of tons.