How To Frame Gable Roofs 3

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.

Figure 34   Ceiling Joist Is Cut To The Slope Of The Rafter

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1.Framing Gable Roofs: Roof Framing Is Based On The Pythagorean Theorem.
2.Framing Gable Roofs: Layout The Ceiling Joists.
3.Framing Gable Roofs: Cut The Ceiling Joist To The Slope Of The Rafter.
4.Framing Gable Roofs: Gable Roof Components.
5.Framing Gable Roofs: Calculate The Length Of A Common Rafter.
6.Framing Gable Roofs: Mark Plumb Lines For Ridge, Birdsmouth And Overhang.
7.Framing Gable Roofs: Adjust The Rafter To The Size Of The Ridge Board.
8.Framing Gable Roofs: Layout & Cut The Rafter Birdsmouth.
9.Framing Gable Roofs: Calculate Length Of The Rafter Overhang & Cut Excess.
10.Framing Gable Roofs: Layout The Collar Ties.
11.Framing Gable Roofs: Calculate The Gable End Stud Lengths & Adjustments.
12.Framing Gable Roofs: Calculate Gable End Stud Length By Ratio & Proportion.

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Written and maintained by
Ronald Hunter

All images and text are copyright Ronald Hunter 2005 to 2011