As stated in the.
2 12 pitch shed roof.
Whichever roof pitch you choose make sure that you select a roof covering that is designed to be waterproof at the angle that you eventually select.
Constructing a new shed roof at the desired pitch is as easy as knowing how to use a speed square.
Many roof material manufacturers have minimum pitch ratings for their products.
If you are only trying to keep a wood pile dry or storing a few outdoor tools and light machinery out of the weather then you might consider a simple single pitch roof since most everything inside will be stored at ground level and pulled out from the outside of the shed.
The reason for this is that flat or shallow roofs withstand much more abuse and loads than steeper roofs making wider shed roof rafters a necessity.
Therefore if your roof rises 4 inches over the course of 12 inches of horizontal run then your roof pitch is 4 12.
Remember that pitch is calculated as the height or rise of a roof pitch over 12 inches of horizontal run.
Many shingle manufacturers recommend no less than 2 12 when installing.
Your shed roof pitch may also be influenced by your project specific requirements to let light into the building through the roof or create storage space in the roof void.