Secure the bookcase into wall studs whenever possible, instead of using wall anchors. It is best to secure the bookcase without the books in it, and then fill it up once you are finished.

If you couldn’t find a stud, you will need to make pilot holes and insert the wall anchors. Then, screw the wood screws directly into the wall anchors, where your lines meet.

If you can’t find a stud, you should install wall anchors before you drive screws into drywall or masonry. Drill a pilot hole into the wall and push the wall anchor in. Then, align the brackets and drill with three-inch screws.