Living in nj you can get 18 20 of snow so i would go with 2x6 s.
2 x 4 shed roof overhang.
With a 3ft overhang that corner is going to be pretty soft.
An overhang to protect the shed user on a rainy night could be relatively small whereas an overhang to provide a shaded area in front of the shed to keep the interior of the shed cool will be much larger.
I live in ct and have a slightly larger run with 15 span with 1 foot overhang on the end.
Building a shed roof with an overhang can substantially change the look of the shed and can add extra functions.
A roof overhang can allow for the incorporation of soffits another roof ventilation option and they can help cover entryways and move rain water farther away from the shed and foundation.
The ideal shed roof overhang depends on the purpose of the overhang the location and microclimate of the building.
But you have to take the square root of 20 to find the length and.
The answer is 20.
So for our 8 10 shed you ll do 4 2 2 2 x.
This will protect a roof from most types of damage.
Roof overhangs can extend farther than 2 feet but beyond this length they begin to lose structural integrity and require external supports.
So the corner is supported by one 2 x4 located usually 2 to 4 ft in from the exterior wall and the rough fascias making for a weak spot you feel when you walk the roof.
15 is too long for a 2x6 in houses 2x6 is only rated for 8 spans i put in a mid point support and i don t have to worry about snow anymore.
To make installation of the ladders easier tack a short piece of 2 4 to the fascia board end and a length of 2 4 extending off the top of the shed.
Two feet is the general maximum length for a typical roof overhang.
Rest the end of the ladder against the fascia board and clamp the other end to the roof 2 4 to hold it in place.