Defense housing, Erie, Pennsylvania. The entire framework, including sections for doors and windows, is fabricated horizontally. The crew working here will later move to another site and repeat the procedure. This circulation of crews who are experienced in one type of construction adds to the speed with which defense homes are being built. Two crews of forty men each are used to raise the stud frames of a four-unit defense home. On the project shown here, one crew started the framework at 8:30am, fabricating it horizontally, and finished it at noon. The other crew moved in shortly after, erected the stud frame, ends, and floor joists, and finished the entire framework by 4:30pm the same day