There are different types of these slide-out drawers. Some sit ON the frame and some ride inside rails. Make sure you check the height of your cabinet to be able to install the ones that sit on top. I didn't realize there were different types and in one cabinet (with a shelf above), it was a bad fit. All in all, I LOVE my slide out drawers. So much easier that digging around and pulling everything out to find what you're looking for! They are sturdy enough to handle pots and pans and stacked glass bowls.