The other shelves can be moved up or down, but the middle shelf needs to connect the to halves of the vertical supports. The shelf rails are strong, but the shelving material is thin particle board or chipboard which is strong until it gets wet. I would not use this shelf in my damp basement. I paid 118 USD for a two pack at Walmart and delivery to my house was FREE. That's 59 USD each with free shipping. I paid a little less, 55usd on sale from 59usd, for a Room Essentials chrome wire shelving unit at Target, but those shelves are only 18" deep while these are 24" deep. The chrome looks better than the particle board.

Very nice shelf unit. Sturdy. Relatively easy to put together even by one person. Unit comes in a flimsy box. Product very heavy and 3 of 4 boxes (I purchased 4 shelf units) were partially open. Plastic strapping would have helped hold boxes together or a sturdier box is needed. Had to put box on hand truck to move. Too heavy to lift by myself.

This is not as described and a bad purchase for me. I bought 2 for my garage. Unless you are putting lightweight items on the shelves these will not work. First the box is so heavy that when I got them the ends were crushed and the brackets were exposed. I took a picture before I opened the box. The crushed ends resulted in 4 of the 6 particle board shelves being broken. I looked at the reviews, these shelves will not hold more than 50 pounds. Also the instructions were non-existent and you have to figure out how to put up the last 4 shelves. After 2 hours we gave up. I now have to lug 2- 300 pound boxes to Walmart to get a refund. I will look for better shelves for the garage. My advice Do not buy and waste your money. If you do buy be careful with the box you will need it if you have to make a return, and take pictures if your box is crushed.

This item is relatively sturdy. The shelves were fairly easy to put together, with the exception of the 2 posts on top of each other. There needs to be a lip on each end of the post to keep the posts in contact with each other. They tend to slip by each other. It was disappointing to find the shelves were made of pressboard and not steel as the title suggests. This is misleading. The shelves stand straight and appear to hold quite a bit of weight. The prices should be less expensive seeing that the shelves aren't even metal.

This was easy to put together. the corner poles are actually two pieces and its a little sketchy getting the top two shelves on and doesn't tighten up until the whole thing is assembled. It's all snap together, no bolts. I wouldn't put bricks on the top two shelves and you might want to anchor it to the wall. "medium duty would be my rating but suitable for all my tools. Good value for the money. Delivered a week faster than predicted at purchase.

This unit was not available for store pick up so I had it shipped to the house at a very reasonable price. The Shelving unit went together easily and is the perfect size for larger items in the garage. It is also sturdy enough to put reasonably heavy items on. We are planning on buying several more!!!

I bought 5 units from my local store. I am storing items that are shoe box size to luggage size. Even thou the say 4,000 lbs capacity, I think that would be if you had 3/4" plywood or better. The shelving is very thin, but is good for the weight I put on them. I miss not having the ability to lock the units together. The corner posts are two pieces not one long piece. The jointing piece is not long so the unit is a little less sturdy than it could be. If you are wanting shelves for a business that you took off items and restocked a lot, this would not be the unit to buy. You would need to buy something at about triple the price. I still recommend them for what I am using them for.

Came without all the parts required. Missing 3 post (C). Missing all post coupiers (E). Box looked like it had been opened and then retaped. Looks like someone has taken from one to supply another and never bothered to replace parts. Very Frustrating!!!!

These shelves are absolute trash. Can't support any weight, the low-quality particle shelf slips under the frame right away. Such bad design. Seriously one of the worst purchases ever. Now i have to figure out how to return this mess during the quarantine. Not getting much support. Stay away.

Moderately easy to assemble, but lacked corner to corner strength. Frame started to torque after approximately 40 pounds stored on three shelves. Let the load sit over night and the torqueing increased. Returned to store for credit. I've had a similar (same manufacturer - different size) for over 5 years without a problem.