Roof Rafter Finder

Use the diagrams on this page as a reference when inputting rise and run and while interpreting the calculated results.

Roof rafter finder.

Includes result for hip valley factor slope factor and the roof slope in degrees. The chiptoolz rafter finder center line locator is the easiest way to find the center of a rafter ever. Rafter run outer wall this should be measured starting from the center of the roof span and then extending to the very edge of the exterior wall. Rafter length calculator calculate the length of a rafter from the roof slope ratio of inches per foot and a building width measurement.

The run of the rafter. See rafter run to outer wall calculator below. Here the number is 941 86 inches. Half building width minus 1 2 ridge thickness.

With the tool s patented combination of locating wire and 3 4 radius indicator key finding the center of the rafter has never been easier or faster. Place a piece of thin cardboard over the irregular surface and slowly scan over the cardboard. If your tool continuously blinks and beeps it may be indicating calibration errors or a decrease in density. The roof pitch calculator calculates slope pitch angle and rafter lengths based on input of rise m and run r.

Here the number is 1166 66 inches. The length of the rafter. If you add an eaves overhang dimension then the amount the rafter sticks passed the wall will be added to the rafter length. Don t assume the first indication of a rafter is.

The rise of the rafter. Just enter the dimensions of the roof rise and run to get started. Things you ll need tape measure rubber mallet. Height of the scaffold.

The results are automatically fired. If you re building rafters and aren t sure where to start when determining the length of your lumber you re in the right place our rafter stock size calculator shows you how long your rafters should be so you ll know what you need in terms of framing lumber dimensional lumber studs and more. Calculate the length of common rafters with this free and easy online tool by entering a dimension for the roof width selecting a pitch for the roof and the thickness of the ridge. Print full scale rafter cut templates and birdsmouth templates fold template over rafter to mark or cut through.

Start in normal stud. Roof rise this should be calculated from the base of the roof to the highest point of the roof gable the peak.