Fencer Wire 4-Tier Commercial Grade Heavy Duty Adjustable Height Wire Shelving w/Casters & Leveling Feet, Garage Shelving Storage Organizer, Storage Metal Steel Shelf, Utility Storage Shelf, Black.

Easy to assemble. I put it together by myself in less that an hour. Very sturdy. Liked the heavy-duty wheels and liners that came with it. Great value.

Shelf seems sturdy and strong.

Product is heavy duty works great for garage storage, easy to move

This is great! Well made and not too hard to assemble. It's a great size and can support a lot of weight, so long as you don't use the optional wheels. One caveat: the pieces are poorly labeled. Despite what the instructions say, the clips that hold the shelves in place don't have arrows on them stating which side goes up. Also, 4 of the corner poles go on the bottom and the other 4 go on top. None of them are labeled, but it's not hard to figure out which is which. If you've built similar shelving units before, you'll be fine, but these are unfortunate oversights.