The wall section 2 drawing provides lumber lengths and their locations to construct the walls for endwall 2 and sidewall 2. It also provides the fastener type and quantity to fasten the dimensional lumber to the posts.
All door and window openings are located using these drawings and details indicating opening height for header installation is included. For large openings full header details are included reflecting how to build the headers for door openings that displace posts.
Wall girts are typically installed using a 24" on center spacing. These drawings provide the distance above grade to center the wall girts and the overall wall height. Wall height is measured from bottom of skirt board to top of truss support.