Things You'll Need
Drill with bits
Hollow-core door anchors
Installing a hook on a door correctly can mean the difference between a solid installation or finding the hook on the floor one day because it fell out. Although certain doors are solid wood, there are plenty more that have hollow centers or centers filled with insulation. Hanging hooks on hollow doors require special hollow-core door anchors available at home improvement centers. These anchors provide a secure connection without undue pressure on the door skin.
Measure the width of the door with a tape measure, and divide the overall measurement in half. This is the center of the door width. Make a mark at the center point. Measure from the bottom of the door up to the height where you want to put the hook. Line up the height measurement with the center of the door width.
Hold the hook against the door, lining up the center of the hook with your center mark. Mark the hook mounting holes onto the door with the pencil.
Drill pilot holes with a drill bit slightly smaller than the mounting screws at your marks. If you have a hollow door, use a drill bit that's the same diameter as the hollow-core door anchors necessary to mount the hook.
Place the anchor portion of the hollow-core door anchor behind the mounting hole on the hook, if mounting to a hollow-core door. Thread the anchor screw through the front of the hook and into the anchor. Only thread the screw halfway into the anchor.
Insert the anchors into the holes in the door, and tap the top of the screws as necessary with a hammer until the back of the hook is flush against the door. Tighten the anchor screws with a Phillips-head screwdriver. If mounting into a solid door, simply secure the hook to the door with retaining screws.
Use the appropriate type of drill bit for your door material. Wood doors require wood cutting bits, while metal doors require a metal drilling bit. Solid metal doors have a wood filler that only require a standard wood screw for mounting the hook. Avoid using eye hooks on doors. Eye hooks have no mounting surface and therefore all of the support falls onto the hole in the door. Door hooks and hollow-core door anchors are available at home improvement centers and certain hardware stores.
Use eye protection when drilling into doors to prevent injury from flying debris.