I'm building a 10' x 8' gable roof shed. Can I frame the roof on the 10 ft. span (gable end) instead of the 8 ft. span? Roof pitch is 4/12. Thank you.

Sure, either way.
Will the shed door be under the gable end, with a suitable overhang, so that rain isn't pouring on you in bad weather?

The door will be on the gable end and with 12" overhang. Thank you.

http://i819.photobucket.com/albums/zz111/lacogada/shed_zpse87cccae.jpg

http://i819.photobucket.com/albums/zz111/lacogada/shed_zpse87cccae.jpg

Great work!

Very nice! Thanks.

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