This shelf is a BEAST! But in a great way. It came in a box, super heavy. Always needed help dragging it around and I'm not a weak person. The instructions say over and over again to assemble with 2 people and I would recommend you do that. I did not and almost got really hurt assembling solo. While trying to get the two ends together, one of the sides fell over and hit my upper arm, missing my head by inches. I got a huge deep tissue bruise because these shelves are pure steal - heavy duty. If it would have hit my head I might not be writing this review. Other than that, this is very heavy duty, no tools needed to assemble and easy to assemble (especially with 2 people). I can't recommend this shelving unit enough. Really great for my garage.