Drill hole through plaster large enough to accept the toggle bolt.
Hang very heavy mirror plasterboard wall.
If you re hanging a heavy mirror on plaster without a stud your best bet is a hollow wall anchor such as a toggle bolt that expands and secures behind the plaster wall.
For lighter items simply screwing into the plaster with a 1 1 4 drywall screw is usually enough to get the job done.
Using molly bolts is really simple.
A variety of drywall anchors are available.
Mark the outside edges of each stud in the area where your mirror will hang with a pencil.
One foolproof method to hang heavy mirrors or picture frames is to use a molly bolt.
This hollow wall anchor will allow you to hang your frame anywhere without having to find a stud.
When determining how to hang a heavy mirror on drywall it is preferred to secure hangers into the center of wall studs.
Use two hangers spaced along the mirror s width to distribute the weight.
Hanging a large and heavy mirror to a dry lined or plasterboard stud wall the modern method of dry lining interior walls using the dot and dab method and internal stud partition walls with 12mm half inch plasterboard present a problem when trying to hang large mirrors in the exact position required because behind the plasterboard there is a void.
Screws and screws with masonry anchors for heavy items are your best choice for hanging things on plaster walls without picture rail.
Check out the following four easy to install options for how to hang a heavy mirror with minimal wall damage.
Monkey hooks are simple devices that allow you to hang a mirror or other object on drywall easily.
To hang mirror on a plaster wall use a toggle bolt outfitted with a picture hanging hook.
Use an electronic stud finder to locate them.
You need to make sure that the screws or nails you hang your mirror from are driven directly into the studs.
Here are the basic tool you ll need.
Thread machine screw through toggle bolt nut then pinch flat the wings on the toggle and push it through the hole in the wall.
Use an automatic stud finder available for sale at nearly all hardware stores to locate studs in your wall.