However if you are looking to hang a heavy item on plasterboard it may be that you need to use wall anchors in the stud of the wall seek professional advice if you are unsure.
How to hang a large mirror on a stud wall.
Mark the location of the top edge and the center of the frame.
This hollow wall anchor will allow you to hang your frame anywhere without having to find a stud.
Set the mirror down.
If your mirror is being hung on the screw heads like here for the iris then make sure the heads are big enough for the mirror to be mounted on and they will not slip.
Place a scrap piece of wood that is approximately half as long as the mirror is wide underneath the hanging wire on back of the frame.
Hold the mirror against the wall at the desired position.
Use a molly bolt one foolproof method to hang heavy mirrors or picture frames is to use a molly bolt.
Stretch a tape measure or hold a ruler between each set of pencil marks on the wall.
D rings and picture wire the mirror must have a frame around it to hang a mirror this way.
The center of the stud is the strongest most stable place to hang your mirror from so you ll want to mount your screws as close to the center of each stud as possible.
Using molly bolts is really simple.
Use this to find the center of each stud marking with a pencil as you go.