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Gable Roof Framing Calculator - With Running Layout Points - Inch





Scale
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From outside of wall to outside of wall (long side)
Wall Length
Rafter Thickness
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From outside of wall to outside of wall (short side)
Wall Width
Rafter Depth

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Enter angle in degrees directly or select pitch from dropdowns to calculate and enter angle
Roof Angle
°   in 12 Ridge Thickness
Overhang (level) Ridge Depth

Overhang Gable Rafter Spacing
End Rafter Setin
Birdsmouth Seat

? Birdsmouth Seat Cut
Rafter Spacing Type
Wall Height
Wall Thickness
Actual Physical Sizes All measurements are actual physical finished sizes.

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Creates a link to save or Share current calculation
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Gable roof framing calculator plan diagram with full dimensions

Trim rafter tails after placement For a good straight fascia, add an extra inch or 2 to the tails of all your rafters (total length). After they're up, you can snap a line to mark and trim the tails in a nice straight line, to make up for any ridge warp or marking, cutting and fixing errors.



All running measurements are 'and on', from start point to near side of rafter.
Running Ridge: Mark out


Running Wall: Mark out

Left click, release then drag to measure at scale in diagram below - Enlarge diagram scale for more accurate measurements.

Angle Scale

Gable roof profile diagram with all angles, dimensions and volumes

Gable roof common rafter detail diagram with all dimensions and birds mouth




DON'T BREATH THE DUST If you're cutting blocks, concrete, stone or ANYTHING and there's DUST - DON'T TAKE THE RISK
Don't cut it, or cut it wet so there's NO DUST - Silicosis Sucks
And if you're cutting wet, wear a mask - theres dust in the spray too!

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View page on Phone via QR Code (Not current calculation result)

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Zoom out to fit large full scale template images on screen - or to adjust scale to match ruler held against screen
Zoom 100%


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Click Slider to select then use keyboard cursor keys to fine tune.
Keyboard
Fine tune Sliders

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Create Full Scale PDF with diagrams on this page to print (templates)

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Copy all diagrams on this page to bottom of page - Make multiple copies to Print or Compare Results



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Check relevant local regulations for appropriate sizes, spacings and all engineering requirements.


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