How can i tell if my wall is plasterboard, plaster, or drywall? we want to put up hooks to hold the rod for curtains, but aren't sure what screws to use to keep the hooks in place. think the best is a dry wall anchor that you first drill a hole for, insert, and then tighten a screw into. You can put them anywhere, and they hold pretty good. Other people use toggle bolts, or plastic screw anchors, there's probably other choices too.