Telephone (210) 650-2276
Fax (206) 350-0818
Open Monday-Friday 8:00am-5:00pm CST
Fax (206) 350-0818
Open Monday-Friday 8:00am-5:00pm CST
Roof Rafter Calculator
Roof Calculator & Charts
Roof Pitch Calculator
Truss Calculator
Rafter Calculator
Soil Rating for Pole Embedment
Insulation R Value
Squaring Building Lines Example
If you plan to use a gable roof, our roof rafter calculator tools are handy for calculating the number of rafters needed, rafter length calculator, lineal feet of rafter, board feed in ridge and sub-facia,and the total board feet in the roof.Roof Pitch Calculator
Truss Calculator
Rafter Calculator
Soil Rating for Pole Embedment
Insulation R Value
Squaring Building Lines Example
Rise and Run means that a 6/12 pitch roof has 6" of rise (vertical) for each foot of run (horizontal).
| Pitch Rise / Run (in) | Approx Slope (degrees) |
| 1/12 | 5° |
| 2/12 | 10° |
| 3/12 | 14° |
| 4/12 | 18° |
| 5/12 | 23° |
| 6/12 | 27° |
| 7/12 | 30° |
| 8/12 | 34° |
| 9/12 | 37° |
| 10/12 | 40° |
| 11/12 | 42° |
| 12/12 | 45° |
| Get exact slope using our Roof Pitch Calculator. | |