This shelving system is typically used to store long or bulky items that weights up to 780kg per shelf. 1.2m and 3m distance is observed for racking uprights. For moist warehouses, keep in mind that wood based products are not ideal. Consequently, it is best to use galvanised steel shelf panels as chipboard that sit on the top of the shelf beams.
The long span type of shelving is also easy to install and highly adjustable. It has the slotted uprights that are sturdy enough to hold shelf levels at any given or required height. One can simply form long runs of this shelving solution by using starter extensions bays. Always look for Australia FSC certified chipboard wood because these materials came from responsibly managed forests.