Half Span |
mm |
|---|---|
Overhang |
mm |
Rafter Thickness |
mm |
Ridgeboard Thickness |
mm |
Total |
Birdsmouth |
|
|---|---|---|
Rafter |
- | - |
End Jack |
- | - |
Hip & Valley |
- | - |
|
The lengths include deductions for rafter and ridge thickness, plumb cuts and add any specified overhang. Example pieces shown below. Rafter Hip |
||
Plumb |
Side |
|
|---|---|---|
Rafter & Creeper |
- | - |
Hip |
- | - |
Down |
Side |
|
Purlin |
- | - |
|
The 100 × ＿ mm values can be scribed to create a diagonal line to set your bevel angle. |
||
Spacing |
Length Difference |
Hip Overlap |
|---|---|---|
| mm | - | - |
|
Distance is measured from short point to short point i.e. measure from the inside of the centering rafter or end jack to the short side of the creeper. Calculations for all creepers are provided below. |
||
Distance |
Total |
Birdsmouth |
|---|---|---|
| - | - | - |
The Oblique Hip Guide is a step-by-step guide that will help you with calculating oblique hip lengths.