I found some kind of bars at the BIG Coop/Konsum supermarket on Backaplan here in Gothenburgh. It is bars for the closet shelfing unit they have there. They're QUITE interesting and I have provided a link here. It might be REALLY good sturdy strong grids to use.
They're about 53-55 centimeters and have different width. And by securing them with "buntband/cableties in some spots I think these could be VERy useful!
http://www.elfa.com/templates/products.cfm?SidorID=176&ProdukterID=435&ShowDetail=1
http://www.elfa.com/templates/products.cfm?SidorID=176&ProdukterID=435&ShowDetail=1