This wall section has a 16"x8" spread footing.

8" CM units are stacked up on top, a dowel bolts the wall unit into the CM"U.

There are 2x4s @ 16" On center wall studs with a vinyl siding. http://www.co.alleghany.va.us/public_works/SampleDrawings/Sample-StructDraw-WallSection.jpg