Backplates A backplate is a plate placed between the the door or drawer and the knob or handle.  Backplates can be both functional and decorative. They are functional in the sense that they can protect the door or drawer surface and hide heavily worn wood surfaces around knobs and pulls.  They are also functional in the sense that they can cover holes in the door or drawer (for example holes created when switching from 4 to 3 inch pulls).  Backplates are decorative in that they can greatly enhance the look of knobs and pulls and create many style and finish combinations. Adding backplates can certainly aid in changing the look of your cabinets and drawers. They come in many designs and syles and finishes  such as polished brass, brushed nickel, antique bronze or even stone. Backplates for knobs come with one hole for knobs or two holes for handles.  The standard backplate has holes spaced 3 inches apart but you can find other dimensions.