Startup Idea : Storage Network

As self and post storages have been popping up everywhere, why not make a network out of it where private persons could join? Lots of people have too much stuff and others have lots of space which they would like to get paid for. Everyone could offer his free space in the network, be it a cellar an attic, a chamber or a whole hall. People could agree on a price for it, a duration, have it send there or bring it there. The site would get a provision. Legally the owner would state that all in the box is legal, the storer would guarantee unopened and secure storing. Insurances could be possible as well.