For a general storage solution I recently specified and installed a Dexion manufactured Longspan shelving solution and was very pleased with the result. I selected this particular product for a school because :
* it has options for long spans of shelving which means less wasted space when storing typical plastic boxes.
* very high shelf loading specifications which suits storage of dense boxed paper archive files and heavy book stock.
* has an option for steel shelves which will not sag over time in damp situations, a requirement in this case.
* is simple to erect straight and square without too much effort. Note that some shelving systems take considerable labour time to assemble.
* has a high quality finish that will not rust over a long service life.
I would definitely recommended it again for a back office storage solution.