We hear this all the time, and we know that behind this query is the fear that “I’m going to make a mistake, and end up with a bunch of extra holes in my wall!”
The fact is, if you approach it right, using two fasteners insures a more secure hanging for larger pieces, and it isn’t all that difficult. It also eliminates the “pendulum swing” effect when you’re wiping the glass from side to side while cleaning.
To minimize the chance for errors, we always encourage the use of a paper template to help you accurately place your fasteners the first time. This also eliminates the need for you to lift and maneuver a heavy object while trying to establish the best place for it on the wall. After all, moving a piece of paper around to different positions on a wall is a lot easier than lugging an 80 pound “something” around!
Following is a step by step tutorial on making and using a paper hanging-template:
Step back; observe; call your spouse or co-conspirator in to give an opinion (this also spreads the liability if the piece is later determined to be ill-placed!); adjust the height and/or lateral position to suit; then, mark the wall with a pencil at the holes you placed in the paper earlier.