UltraHD® Extra Shelves for 36" W x 18" D Rolling Storage Cabinet

I was worried the shelves would wobble once loaded, but the solid steel holds its shape perfectly even with heavy binders stacked on both levels. The 35.9-inch width fits snugly into the tracks, no gap at the back. Installation took me all of five minutes per shelf.

These drop right onto the existing pegs and click into place with no wobble at all, which I was worried about with a 2-pack. The 16-inch depth is exactly what I needed for stacking bins, and now my cabinet holds way more than before. Honestly, I should have bought two sets.

The steel on these is thick and sturdy, not flimsy like some add-ons I've tried. They slid right into the cabinet’s slots with zero wobble, and I love that I can pop them out when I need to store something taller.