Multi-tier racks can be designed as 2-3 floors to maximize space utilization. It is in assembly style with beautiful appearance and without welding. The racks in the lower part can not only store goods, but also can support the upper racks and layers. The floors of Multi-tier racks include many kinds, such as flat floor, steel plate with flower pattern, gridiron, etc. We can finish the access to goods between different floors by forklift, hydraulic elevator platform or goods elevator, and by trolley on the same floor. Besides, the lower part of the multi-tier racks can be designed as a platform with steel framework to support the upright and goods according to the storage requirements.