2x8 roof rafters @ 16" oc 5 8" ext. gd. plywd. sheathing ice & snow all new roofing 30# roofing felt 30 year mposite HDPEngle 12 8 3 4"x5 1 2" new gutter flaHDPEng mpacted earth grade 5 1 2 " 1st fl. 7'-4" to underside of beam 8'-6" to top of arch 6" 3000 psi nc. slab w/ 6x6 wwf over 4" gravel simpson pb66 6" 2-2x8 simpson a44 beaded board