I live in an Australian inner city apartment built in 2007. I want to attach a shelving unit to a wall but haven’t ever done this before, so I want to make sure to do it properly. I’m not sure exactly what the wall structure is, so I’d love to get some input from anybody that can help. I’ve taken off one of the electrical outlet covers and taken some photos; see attached. Can you tell much from this? What will be important when hanging up the shelving unit?
Do you have an endoscope? If not it may be a cheap investment ($25 on Wish). You could run the scope into the wall cavity until you find a stud or other type of support member. I would not want to attach a shelf to anything without knowing what the material is so that I could use the correct anchor, and where the studs/support members are so that I could possibly attach one side of the shelf to it.