Once the coped joint looks right, hold it in place and mark the cut at the other end.
Wall corners are almost never perfectly square, but coped joints cover this problem by fitting tightly against the adjoining piece even if the corner is a few degrees off.
Let the crown straighten to force the coped joint tightly together.
The answer is that wall corners are never quite square, and coped joints fit tight even when corners ere badly out of square.
9 CHECK the fit of the coped joint and use a pencil to mark areas needing more wood removed.
In these three photos, we show you how to cut a coped joint, but you won't really get the hang of it until you actually cut some moldings.
The next piece of baseboard will need a coped joint to butt into the first piece at the corner (Photo 10).
Coped Joint Use a coping saw to remove the face of a 45-degree cut.