They can generally support pictures of up to 20 pounds.
Hanging a heavy mirror in plaster wall.
In addition to picking the right weight capacity the length of the hollow wall anchor is important because the bolt must extend beyond the wall so it can expand behind it.
The mirror will hang from two points on the wall so you ll need one anchor for each hanger that is not driven into a stud.
Mark the wall near the center of the top edge with a pencil or painter s tape.
As mentioned earlier avoid using nails on plaster wall because they will likely cause the drywall to crack.
Plaster hooks or hanging picture hooks are a common solution for hanging pictures on plaster wall.
One foolproof method to hang heavy mirrors or picture frames is to use a molly bolt.
The double sided tape can support up to 10 pounds and is ideal for mounting glass tile and artwork.
Here are the basic tool you ll need.
Drill hole through plaster large enough to accept the toggle bolt.
Instead use a screw because they won t break the plaster wall.
Using molly bolts is really simple.
Hangers and hooks are also rated by weight so select those that are designed to hold the weight of your mirror.
Another convenient way to hang a mirror is by using scotch clear mounting tape.
Hang a mirror using hooks step 1 hold the mirror in place close to eye level.
Aside from eliminating the need for tools during installation the seamless material does not require punching a hole in your drywall.
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.
Thread machine screw through toggle bolt nut then pinch flat the wings on the toggle and push it through the hole in the wall.
Your mirror is too heavy for picture hooks alone but a wall anchor would likely do the trick to attach them to a wall made of drywall or plaster.
To hang a heavy mirror it s best to select packages of heavy duty anchors.