This shelving unit is super sturdy! It's very heavy so be sure to help help putting it together. And that was much easier than I thought it would be. No special tools required and the instructions are easy to follow. I do suggest putting the unit together near where you want to place it because it weighs over 100lbs and isn't all that easy to move. And that's great because you sure don't have to worry about this one falling over or not being able to handle storage of very heavy items! The size of the shelves is very adequate! I was really suprised at how much stuff will fit on this super sturdy unit! [This review was collected as part of a promotion.]