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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


Rafter Overhang Lower End Rafters Set-in
Rafter Overhang Upper Birdsmouth Seat
Scale Share this Calculation

Possible Alternate Equal Rafter Centres

Skillion roof framing calculator plan diagram with full dimensions

Running Rafters:

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.

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

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