Rafter Length Calculator Shed Roof

This calculator is to be used as an estimating tool only.

Rafter length calculator shed roof. The results are automatically fired. The rafter member will be longer. Lean to shed rafter calculator into a wall calculate the length of lean to shed roof rafters for any common roof pitch when the top of the rafters stop into a wall. Click the button to calculate the stock size needed for this job.

Half building width minus 1 2 ridge thickness. Anything beyond that you are looking at using 2x6s for most sheds. Online rafter length calculator 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. Input the rafter span on the flat eave overhang and pitch of the roof.

See rafter run to outer wall calculator below. Rafter length the rafter length results from this calculator represents the length of line l on the diagram s. How to calculate a lean to rafter. Note that this is not the actual length of the rafter.

The pitch and span of your roof will dictate how long of a rafter you ll need use maximum span calculator to help you find your rafter size. If you look at the rafter span chart you ll notice that 2x4s can be used for rafters on spans up to 11. If you add an eaves overhang dimension then the amount the rafter sticks passed the wall will be added to the rafter length. It includes the rise and works in feet and inches or metric values.

If you plan to have overhang etc. 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. Rafter length using pitch v r 2 sqrt 1 p 2 where v overhang r roof span p pitch use our online rafter length calculator to quickly compute the length of the shed roof rafter by entering the measurements of overhead length of roof span pitch or angle. Includes result for hip valley factor slope factor and the roof slope in degrees.

Rise and run means that a 6 12 pitch roof has 6 of rise vertical for each foot of run horizontal. To calculate a shed roof select shed from the roof type dropdown list or click on the corresponding button on the toolbar to calculate a shed roof. Allow for ridge thickness when determining rafter run to outer wall. The preview window displays a dimensioned side view of the shed roof.