Australian warehouses and distribution centres (DCs) are under pressure like never before in efficiently storing goods and distributing goods to customers on time and in the right condition. Meeting increasingly disparate delivery schedules and stocking a wider range of SKUs to accommodate changing consumer demands and acquisitions create a range of trying operational issues. While much attention in the industry is given to better management of workflows and people to ensure the ongoing efficiency of the DC, one of the most critical aspects of warehouse operations is how to better utilise available, unused storage space.