The advantage of this configuration of rack is that all pallets are accessible from the facing aisle.
Selective rack is steel storage rack arranged in either single or back-to-back (double) rows. Each of the rows offers a bay or number of bays in the down aisle direction. Pallets are generally positioned side-by-side in the down-aisle direction at each level of the bay.
Selective rack provides high SKU storage for medium density applications and offers low cost per storage positions.