When should I use a flush-mounted corner guard vs. a surface-mounted corner guard?
A44 Practically speaking, flush-mounted corner guards can only be applied to walls that are receiving new wallboard or other surfacing. The reason for this is that the flush-mounted retainer must be set into the wall, requiring that the wall material be cut short of the corner. This is only practical with new walls. Surface-mounted corner guards should be used to retrofit and protect existing walls that are being damaged, but they are also equally applicable in new construction applications.
