I've heard that OSB is very moisture sensitive, but I've also heard similar things about plywood. If you're building a shelf yourself in a basement that isn't exactly water-damaged, is it that critical? Do you need to put a sill gasket between the studs and the concrete wall and use special anti-mold paints on the wood, or is it enough to just put up some studs and OSB shelves?
Does it get worse if you also want to do it in a laundry room?