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Hip Roof Framing Calculator - With Rafter Angle Cutting Templates and Layout Plans - Inch

Wall Length Rafter Thickness
Wall Width Rafter Depth
Roof Angle
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°   in 12 Hip Thickness
Overhang (level) Hip Depth
Birdsmouth Seat
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Ridge Thickness
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Extend Sheets
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Ridge Depth
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Rafter Spacing
Hip Adjustment
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Rafter Spacing
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Actual Physical Sizes All measurements are actual physical finished sizes.

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Hip roof framing calculator plan diagram with full dimensions

Join Detail

Hip roof framing - hip to common to ridge join diagram
Ply Sheathing Angle and Cut Set-back - Both sheet orientations ↔ ↕ Sheathing Hip Cut Calculator
Hip roof ply cut angle diagram 1138.93 ft² = 35.6 Sheets + waste = 40 Sheets
Sheets rounded up to next full sheet

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.



Common rafter diagram with full dimensions

Hip rafter diagram with full dimensions


Hip roof framing rafter cut angle template diagram Print full scale paper templates - cut and fold over wood to mark and cut angles







Birds-mouth Templates


Set Bevel Gauge from this page with your Phone.
Set Bevel Gauge from Phone



Circular Saw Bevel Setting Hip and Creeper Side Cut Settings If using a Circular Saw or Compound Miter saw, set saw bevel angle to 45° to obtain Creeper and Hip side angles.
With the saw bevel angle set to 45°, cutting hips and creepers at the plumb cut angle will produce correct side angles.
See Hip Cutting details blow and Saw Miter and Blade Angle Settings

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

Roof Angle Scale

Hip roof framing profile diagram with angles, heights and volumes


Hip rafter detail diagram

Circular Saw Hip Cuts To mark and cut hip plumb and side cuts with a circular saw - Print a Paper Template (easy + accurate) OR:
1: Mark the end plumb cut angle line ( back from square) on both sides of the hip. This is the pointy end. (Don't cut yet)
2: Measure back from this line and mark a second, parallel line on both sides of the hip. (This is the line to cut along)
3: Set circular saw blade tilt angle to 45°, cut 1 side along second line, with blade tilted toward pointy end, then flip and cut other side the same.

Creeper rafter detail diagram - right side

Print and cut full scale paper templates - fold over wood to mark and cut angles (easy)

Hip rafter full scale cutting template Creeper rafter full scale cutting template Common rafter full scale cutting template

Optimum Creeper Length?
From the optimum creeper length you can cut 1st + last, 2nd + 2nd last, 3rd + 3rd last etc creepers.




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 - there's dust in the spray too!

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