Sturdy enough to do the job. The quality of craftsmanship isn’t high. Most of the wire mesh sticks out on the edges causing cut hazards for your hands and totes. I had to hammer all the tips down flush to the shelf edges so they didn’t scratch or rip anything. They should have been tack welded on the ends. The product also doesn’t fit across standard 16 joist spacing for anchoring to the ceiling. Sizes should be 32 or 48 inches. At 36 inches the rack supports dont hang straight. I opted to use lag bolts to mount the footings into ceiling joists instead of the anchor bolts they provided. I didn’t trust them, seems like those are better for cement anchoring. For the cost I probably should have opted to make hanging shelves with wood instead.