Usually trusses are put 24 inches apart.
How to support shed roof.
As each truss is put up on top of opposite walls it must be put up straight and supported while the next truss is put up.
This will ensure a more even weight distribution on the four walls and enable the structure to better handle the motions of the roof.
You will need to build a number of trusses based on the length of your roof.
You will also want to consider the roof slope so that the building fits in with other buildings in the neighborhood and works well with the selected roof covering.
To hold them up until the decking of the roof is placed on top a 12 foot 1 inch by 4 inch piece of lumber is used.
Bracing for putting up trusses.
A gable style roof is considered to be the easiest type of shed roof framing to work with.