How To Frame Gable Roofs 12



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Calculating Gable End Stud Length By Ratio And Proportion

The gable end stud length difference can be calculated by ratio and proportion as shown on figure 43. If the studs are to be at 600 mm o.c. and the unit rise is 150 and the unit run is 250, the difference in stud length X will be X divided 600 mm = 150 mm divided by 250 mm. The difference in stud length is 360 mm. Subtracting multiples of this distance from the longest stud will give the lengths of the other studs.

  Figure 43  Calculation Of The Theoretical Gable End Stud Length Difference By Ratio And Proportion  








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                                                                 Framing Gable Roofs Links

                                                     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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