Our two build days in Oklahoma City were spent on the same build site, so we had the chance to make really substantial progress. Our group arrived to an empty concrete slab and managed to complete the framing and sheeting in one day and the roof trusses the next.
The Habitat site was super organized,too. They'd previously laid out the to and bottom plates for every wall. Stud locations were penciled and doors and windows were marked in color-coded spray paint. The doors and window frames themselves were all preframed.
The house itself had a 2-car garage, two bedrooms, a kitchen, den, and lots of closets.