A shelf is not simply a way to fit more products. Its position must suit package dimensions, load weight, lid clearance and the shelf positions allowed for that model.
First measure usable internal height and shelf slots. Measure the product with its tray or outer packaging to set shelf spacing and top clearance.
Apply any maker-documented load and arrangement limit for each shelf. If the information is missing, do not assume a capacity; ask the supplier for the value for that model and shelf part.
In a layout trial, the lid should close freely, packages should not be pinched at shelf edges, and items should not slide during vehicle movement. Choose restraints suited to the container and load design.
Run a trial with the actual load. On return, record shifting, crushing, leaks, lid contact and access difficulty; reassess the layout under comparable route and load conditions.
Shelf spacing must also allow cleaning; washing and drying removable parts should follow the site's procedure. Remove a damaged shelf from use.
Closer shelf spacing does not suit every product. Decide using capacity calculations, maker limits and an actual-use trial together.
