Double check shelf horizontal positioning, using a level. Are poles exactly the same in length, and inserted sufficiently? Insure bottoms, at the floor are adjusted properly, by using a level on the bottom shelf.

Easy to assemble, solid for alot of items in the garage, I actually went back and bought another one. Its lightweight yet solid enough for large tools or containers full of things.

They are pretty sturdy and easy to install but even with not so much weight they show a small curve towards middle making some bins hard to push in or take out. Does hold quite well tho.

This shelving is easy to assemble, very sturdy. I cannot comment on whether or not there's bowing of the shelves over time as I've only just received this.

Very sturdy, and perfectly fits with the Sam’s club storage bins. This has made a major difference in my basement and garage and I bought multiples. I bought shelving off Temu that was similar but cost $200! I am way happier with these.

This shelving unit is perfect to help organize my newly expanded basement storage area. I have tons of christmas decorations and memory keep sakes that I prefer not have on the floor and this is just what I need to lift it off the basement floor.

We bought 2 of these shelf units. They were very easy to assemble and are quite strong. They come with straps to attach them to the wall for stability. I am very pleased with them and will likely get two more.

Easy to put together and sturdy! Just what I was looking to put inside my work shed . The plastic is better than the metal shelves I have bought in the past and they should last longer.

Follow instructions and it goes together easy. As it comes together the unit becomes very strong and stable. I especially like how deep the shelves are.

These are great shelves. They are heavy duty and easy to assemble. The shelves are deep and fit alot. You are able to configure them somewhat to for the space you are putting them. I will go back for another set once I get these filled.