Span calculator for wood joists and rafters also available for the android os.
Shed roof rafter span calculator.
In other words if there is a 1 1 2 ridge board nailed into the wall and the width of the lean to is 96 then the run will be 94 1 2 96 1 1 2 94 1 2.
This calculator is to be used as an estimating tool only.
Input the rafter span on the flat eave overhang and pitch of the roof.
The preview window displays a dimensioned side view of the shed roof.
Rise and run means that a 6 12 pitch roof has 6 of rise vertical for each foot of run horizontal.
Also available for the android os.
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.
Click the button to calculate the stock size needed for this job.