James Owens wrote:

Say someone were to cut a hole for an electrical outlet in some drywall,
but miss by an inch and have to expand the hole. How would one fill the
unsightly gap -- just slather some Polyfilla in there, or is there a
preferred technique?

--
"For it is only of the new one grows tired. Of the old one never tires."
-- Kierkegaard, _Repetition_

James Owens, Ottawa, Canada


Assuming this is a square hole for an outlet or switch, glue a piece of
1" x (whatever the height of the hole) sheetrock to the bad side with
Carpenter's glue. Cut away any rough paper fibers at the cut seams on
both the panel and the repair piece, apply glue to the 3 edges to be
joined. Stick it in, making sure the faces are even. Let dry, and put a
skim coat of joint compound over the repair. Sand to smooth.