Using a saw, cut along the uppermost horizontal line until your saw reaches the stud.
Turn the saw around, inserting it into the cut you have just made, and cut toward the
opposite stud so that you have a clean horizontal cut between the two studs. Be careful
not to cut into the studs themselves.
Now make the second horizontal cut from stud to stud on the line 16” below the first cut.
Once the horizontal lines have been cut, make vertical cuts using the inside edge of the
studs as a guide. Once you have made both vertical cuts, you should have a rectangular
hole in the sheetrock.
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