MeshWorks®エポキシコーティングスチール追加シェルフ（17.7x17.7）

The mesh surface keeps smaller items from slipping through, and the 440 lb capacity is no joke—I've loaded mine with power tools and it doesn't flex at all. Took maybe five minutes to install on my existing unit.

I needed another shelf for my heavy workshop tools, and this steel expanded mesh one handles the weight without flexing at all. The 440 lb capacity gives me peace of mind, and it fit perfectly onto the existing uprights.

The mesh surface is really sturdy—I tested it with a heavy stack of books and it didn't flex at all. It locks right into the uprights without any wobble, so I'm confident in the 440-pound limit.