Sturdy, versatile shelving assembly
Your review: I've got a bunch of these boltless shelf assemblies mounted on caster bases to provide easily-moveable storage for shop tools and supplies. Pricey, especially after shipping, but I love them and haven't found anything comparable locally.
Pros: Heavy-duty, flexible shelves, easily moveable to accomodate cleaning and shop reconfiguration requirements.
Cons: Dimension of the actual shelf in a 2' x 4' framework is slightly less than 2' x 4', requiring multiple cuts in a sheet of plywood, MDF, etc., to get shelves to fit easily in the framework. Hard to reconfigure shelves if you use full-size (e.g., 2' x 4') shelf material. Cutting the shelves in half makes it easy, but isn't aesthetic.