Home DIY

anyone know the best way to affix a shelf to a dry wall without it (the shelf) sagging? Have tried plastic rawl plugs but they don't seem to have sufficient grip and the metal ones are just far too wide for the holes on the shelf brackett. Help me internets!

What do you mean by metal ones. If you mean the screw-in like this:

They're not meant to go through the bracket, just the wall. In fact, most anchors only go into the wall, so the size of hole on the bracket is unlikely to be a factor