The next most important factor is the lift trucks maneuverability, or ability to make a right-angle stacking turn or a turn in an intersecting aisle.
(i) Right-Angle Stacking Turn
It is the distance required for the lift truck to turn and make a deposit or withdrawal from a storage position
The distance is the aisle width
Easy way to determine aisle width: take a conventional pallet load length (stringer) plus the distance from the face of the forks to the centreline of the truck drive wheel plus the outside turning radius; if there is unit load overhang, the overhang dimension is added to the stringer length
(ii) Lift Truck Wheelbase
It is the distance between the front and rear wheels
It determines aisle width
Lift Truck with short wheelbase requires a narrow right-angle turning aisle