Shorter screws think 2 inch for smaller cabinets that wont hold much weight think 20 pounds. Heavier screws are better think 10 or 12 gauge. Chapter 3 How To Install Base Cabinets Installing Cabinets Installing Kitchen Cabinets Corner Kitchen Cabinet Get detailed instructions on installing wall cabinets in any room here. Best way to hang kitchen cabinets . Use command hooks to hang potholders baking utensils pot lids and more. Cabinets which feature a handle or knob should have pre-drilled holes which show you where the handle goes. Screws driven through the top rail allow the cabinet to hang suspended from its highest point. For lower cabinets the handle should go near the top. Attach it with screws as you did the first one. At the end of a row you will need to attach a side panel. After all how much do you want to worry about the cabinet coming off the wall with someone under it. Join the two cabinets with two clamps located about 14 of the distance from the top...