Step 3 · Drill Pilot Holes

Select a drill bit that is slightly smaller than the diameter of the screws you will be using. For plaster walls, it's often beneficial to use a masonry bit to create clean holes and prevent chipping. Drill pilot holes at each of the marked screw locations on the wall. The depth of the pilot hole should be sufficient to allow the screw to penetrate fully into the wall stud. If you are not drilling directly into a stud or if the stud is shallow, you may need to use appropriate plaster anchors for added support, in which case you would drill a larger hole suitable for the anchor.