New bath:
If installing new bath taps out of the wall into the new bath position place this noggin timber about 4-inches (100 mm) to the center of the wingbacks above the finished lip of the baths top outer edge. The face of this noggin may be about 1-inch (25 mm) deeper than your wingbacks back inside the wall. Use ¾-inch (20 mm) diameter wingbacks for the bath taps for greater flow into the bath.