My client, a livestock haulage contractor, was using a 2 deck semi-trailer stock crate to transport livestock from a range of private companies/properties who needed their livestock transported to and from the sales, between properties or to the abattoirs. 
He needed to upgrade his trailer to a 4 deck stock crate to enable him to take advantage of some new opportunities. It would also enable him to haul twice the number of animals each trip.
This would increase his turnover and reduce the number of trips required, which would improve his profitability.