KEVIN NAIRN
Member
This is very interesting. If you mitre an internal corner with say Taurus, unless the walls are dead square or you've measured the angle and bisected it, you'll see a gap. Wood shrinks most across it's width, and not much in length or thickness. The scribed (or coped joint as you use a coping saw to cut it) should be cut on a mitre first at 45 degrees, then a coping saw used to follow the shape of the mitre. Finally (and most chippies don't do this) a half round file should be used to file the scribe at an angle so that only the face touches the fixed skirting. If the wall's out of square, it won't matter as only the face edge is touching. By the way, the scribed ends should not be seen when you walk in the room, or you may see a small gap after shrinkage. In other words, the scribed skirting should be on your left or right, not on the back wall.
Kevin
Kevin