The second data set is related with the dimensions in the storage area. A back to back shelve warehouse
design is considered and the width of 2.2 m, length of 0.9 m and height of 1.0 m for a storage space in a double
shelf is determined. The width of an aisle between shelves is 2.0 m and also the width of a dock is 4 m which is
determined considering the aisles’ width. The width of a dock can be unconsidered in the situation of using one
dock. But if the number of docks increases, it should be added to the formulation as a parameter. The only one
cost factor, material handling cost, is calculated by taking the cost of workers, forklift usage, fuel consumption,
and depreciations rates into account and 1.13 * 103 $/m is obtained.