wrote:

Thanks for the chalk line idea for establishing the hole drilling
height for the boxes. I used chalk lines on the ceiling joists to
install the fluorescent fixtures but never thought about it for other
uses.

TIP:

If you don't have a helper to hold one end of the line... drill a hole into
the wall where your first box will be installed, run a Tap Con a couple of
turns into the hole (or use a stick) and hook your chalk line onto that
"third hand"!

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