Marcelles Carpentry : Fitting a simple shelf can give you a lot more storage space in your home or garage. The type of wall you have will determine the type of screws or bolts you need to use.
The way to test a wall is to tap on it with your knuckles. Some plaster walls actually have brick behind them. If you tap of them and hear a hollow sound, there are timber studs behind, but if there’s a solid sound, and you will also feel the difference, there’ll be brick behind it.
If you have a plaster wall, you can use a stud finder to locate where the studs are.
Sometimes you can only find one stud where you need it, so where you can’t find a stud, but need one, use a wall mate and a screw.