Storage system consisting of conventional pallet racking and a big span mezzanine – 17 400 pallet places, 11 400 rackings, height of the racking 9 meters, 1200 m2 floor on mezzanine. All the works had to be finished in 5 weeks due to customer’s deliveries. To satisfy the customer and fo finish the project we needed a good cooperation with other subcontractors. The work was done in two ways.