1)simple construction,easy install by yourself 2)high space utilization 3)can operate FILO,not FIFO 4)can be customized details:Drive-in racking is also known drive through racking.It's suitable for the storage of goods few varieties at same size by large quantities,with high space utilization and lower cost.It has no special channel  for trolley and trucks.When storage goods,the forklift operates from inner side to outer side,but oppositely when picking,that is called first-in,last-out.The theory of drive-in racking is to link the traditional rack og many lines together without special channel.The way of installment can be put to sets drive-in racking back to back or make one set stand against the wall,while the entrance and exit of forklist use the same channelDrive-in rack has good storage density but can't operate first-in,first-out.This type of racking fits for storaging standard cargo units.