The main advantage of carton flow rack over static rack or shelving systems is that merchandise remains better organized and easier to pick. Inventory is easier to monitor and control since products are always fully visible.

Carton flow shelving uses a gravity feed rear-load design. Each unit consists of one or more inclined lanes equipped with specially designed roller tracks. Merchandise is loaded in the rear of each lane an as an item is removed from the front, the items directly behind index forward into the picking position.
With carton flow rack systems, labour savings of up to 75% can be realized almost immediately. This system also limits the interaction of order picking employees with forklift operation creating a safer working environment.