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Cutting The Ceiling Joist To The Slope Of The Rafter
If the height of the
rafter is 60 mm
(2.36 inches) above the plate,
as shown in figure 34, mark this position minus 10 mm (0.39 inches) at
the end of the ceiling
joist; i.e 50 mm (1.97 inches). Place the framing square on the joist
so
the rise is 150 mm (5.91 inches) and the run is 250 mm (9.84 inches),
and the blade is at the 50 mm mark at the end of the joist. Mark and
cut off the piece of joist between the 50 mm mark on the joist and 250
mm mark on the framing square.
