Masonry facing per 2307 at L/600, no support by wood members, 1/2" offset from light-frame face req'd. Std Wt Brick used.
Brick facing to be running bond. Have 16' garage door header, 3.5' pier width each side of opening & 10' of gable at center span. Calcs out for A36 9x4x5/8"...