This IS a commercial grade rack. The package was heavier than me! At first, the assembly seemed weird because the plastic pieces that hold the shelves in place don't clip together all the way, but it all makes sense once you have the first shelf on. You are somewhat restricted by the pre-planned bevels in terms of shelf placement, but there are many many bevels so you can pretty much place the shelves wherever you want. The breaks are kind of hard to press; you need to have hard sole shoes on. Super happy with my purchase though!