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Skillion Roof Framing Calculator - With Running Setout Points - Metric

Wall Length Rafter Thickness
Wall Width Rafter Depth
Wall Thick Rafter Spacing
Roof Angle Spacing adjusted to fit evenly
Spacing as entered - end spaces adjusted to fit if necessary

Rafter Overhang Lower End Rafters Set-in
Rafter Overhang Upper Birdsmouth Seat Birdsmouth Seat Cut diagram
Email this Calculation Creates a link to save or Email current calculation
Possible Alternate Equal Rafter Centres

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Skillion roof framing calculator plan diagram with full dimensions


Running Rafters:

Mark-out
Skillion roof rafter detail diagram with all dimensions and birds mouths
Angle Birds-Mouth


Skillion roof profile diagram

Total Height Overall height of roof will be mm above lower wall, + BATTENS, ROOF SHEETING etc.




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Don't cut it, or cut it wet so there's NO DUST - Silicosis Sucks

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