Rafter Pitched Roof

Roof pitch calculator results explained.

Rafter pitched roof.

Next set the framing square on top of the rafter beam and use a pencil to trace the outside edge of the framing square s tongue. It can be assessed in two ways either as the angle the rafter makes with the horizontal or the proportion between the rise and the run of the roof. Often you express roof pitch as the ratio between the rise and the run in the form of x 12. 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 refers to the slope which the rafter creates. Roof rafters and shed roof pitch. You can assess this in two ways either as the roof pitch angles which the rafters make with the horizontal or the proportion between the run and the rise of the roof. Most rafter span charts are organized into 2 sections.

To cut roof rafters start by fixing the stair gauges on your framing square to the dimensions of your pitch. Rise and run means that a 6 12 pitch roof has 6 of rise vertical for each foot of run horizontal. Roofs with a slope less than 3 12 and roofs greater than 3 12. Slope the slope of a roof is represented as x 12 where x is the number of inches in rise for every 12 inches of run this is very useful information for many purposes especially for roof framing the slope sometimes called pitch is calibrated on speed squares.