These shelves are actually 47 inches wide, 45 inches between the poles if you plan to use storage containers and slightly less than 18 inches deep, with only 15.5 inches between the poles. I have to either return the shelves or get smaller storage totes

Super sturdy & you can easily adjust shelves to any height & spacing you want. Easy to assemble, not tools needed. After attaching the wheels to the 4 vertical posts I would suggest installing a couple of shelves before attaching the the other 4 vertical posts.

You can go buy a plastic shelf at other stores for $49-$69 which can hold a couple hundred pounds. This thing can hold 800 pounds with the wheels installed or 6,000 pounds, that 3 TONS, without the wheels. I couldn't make a set of shelves out of wood, that could hold that much for under $100!

Sturdy shelving units that were easy to put together. Love that you can adjust the shelf heights. We purchased three for our garage. I love that they have wheels—makes them easy to move and clean behind. We saw them in store, but ordered online and had them delivered since they were heavy and we didn’t have a vehicle suitable for transport. Excellent buy!

Not sure why the Members Mark shelving requires a small threaded connection, most of the others don't. Mine was likely a return, and had been cannabalized. Opened box, missing parts, even extra parts. I will say that working through the system, I was able to receive correct connections, rare.

I just redid my whole laundry room with these shelves and I can't praise them enough. A fantastic value that will last for years. I purchased two of these units for my shed about ten years ago, I used 2 shelves from each to 'span' in between the units to make one big unit that was 12 feet wide by 4 shelves high. Even when loaded with the big storage bins I have no problem rolling the unit around to get behind it and they still look like the day I bought them. I wouldn't recommend any other shelving at any price.

Make sure you check each shelf carefully before attempting to put this together. Three of the 6 shelves had defects- instead of 4 ROUND openings to slide the shelf onto the poles, at least one opening was OVAL vs. ROUND shaped, which made it very difficult to get the shelf to sit level on the poles. I struggled with two of the lesser deformed of the 3 shelves and with the help of a rubber mallet, got them to stay put and level. However, the last shelf had such a deformed oval-shaped opening that it wouldn't sit properly on the poles at all. I contacted Sam's and they worked with me to give me a partial refund so I wouldn't have to return the 100 lb thing!

We use these shelf units to store conservation-grade boxes of historic textiles. The shelves are easy to assemble, strong and sturdy, and the casters are high quality. The units hold considerable weight (textiles can be VERY heavy) and can be moved easily by one person. We have searched extensively and found that, for both quality and price, these units are the best buy on the market ...And that's important for a non-profit institution with a tight budget. Highly recommended.

This recent purchase of three units is a continuation of a project that now has my total number of units at 14. They each hold a lot of weight and when time comes to sweep the floor I can simply move them, clean up and put them back in their place with ease. I am sure more of these will be acquired as I continue to bring order to all of my things which can easily be seen when placed on these units.

This shelving unit is excellent quality, very sturdy and rolls easily on smooth surface. As a tall senior female, I was able to assemble it by myself, altho' it would have been easier with 2 people. The plastic cuffs that hold the shelves kept popping off while sliding the shelves onto them, but I won, finally! I have been using it as a vertical sorting station as I reorganize rooms and closets. It will go in the garage eventually.