Roof Framing Calculator

Wall Length
Wall Width
Roof Angle
Overhang (level)
Rafter Thickness
Rafter Depth
Hip Thickness
Hip Depth
Ridge Thickness
Rafter Spacing
Adjust Equal Rafter Spacing Exact Rafter spacing
Birdsmouth Foot Cut
Bottom Plumb Cut
Running Setout Pts
Explain

Hip Side Cut 43.9°

Set Bevel Gauge Angles

You need:

1 Ridge @ 20'1~1/2" × 1~1/2"

34 Common Rafters @
12'10~1/2" × 8" × 48

4 Hips @ 17'6~11/16" × 8" × 1~1/2"

Creepers
8 @ 11'5~23/32"
8 @ 10'15/32"
8 @ 8'7~7/32"
8 @ 7'1~15/16"
8 @ 5'8~11/16"
8 @ 4'3~7/16"
8 @ 2'10~3/16"
8 @ 1'4~29/32"

(Free) RunTalk Android App
Speaks Running Measurements.

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