Calculations for a deck 17''x 10 feet.
Calculations will be for 230 psi snow load in the city of Mammoth lakes Ca.
deck is supported for 3 girder beams '' at the front. 6x8 at center 6x6 and the last against the foundation of the house 4x8 girder attach with 5/8 bolt studs 16" OC. The joist will be 2x6 spaced 16" oc.
The deck is 24" of the ground. and girders are supported in 12"x12 piers spaced 4'' apart.