2x6 Advanced Framing
The 2x6 advanced framing wall system is an adaptation of standard frame construction to reduce cost and material consumption while improving performance. The 2x6 frame is typically spaced at 19.2" (1/5 of an 8' sheet) or 24" on center (roof framing spacing is already typically 24"). This strategy can be combined with modular layout and single top plate for added economy, but can also be used independently. Some insulation manufacturers do not make insulation for 19.2" spaced framing, so using this spacing in an insulated wall may require changing the type or brand of insulation. Building to a 24" module and using 24" on center wall and floor framing can minimize framing material cost. In addition, advanced framing is combined with a variety of construction strategies to further reduce cost and material consumption, including the use of open corner framing and strategies to reduce the size and number of headers for bearing and non-bearing partitions.

The advantages of advanced framing are that it reduces the amount of lumber and lowers material and labor costs while improving energy performance. Wider stud spacing reduces heat loss and increases the amount of insulation in the wall. Significant amounts of lumber can be removed from the wall and floor framing, although the need for thicker decking, cladding and finish materials may partially reduce the savings. In general, simpler plans designed on a 2' module are much more likely to result in savings. The disadvantages of the system are that additional time may be required for framers who are unfamiliar with the techniques and additional planning may be needed for design and construction. In addition, floor decking, cladding and interior finish materials need to be sized to span the added dimension without undesirable deflection. In high-wind and earthquake zones, 16" on center framing may be necessary to meet loads. For cost and environmental implications see the Cost and Life Cycle Analyses below.

Wall System Sources
Cheple, Marilou and Pat Huelman, "Construction Technologies," House One Research Report, Minneapolis, MN: University of Minnesota, 2003.

Lstiburek, Joseph. Builder's Guide to Cold Climates, Newtown, CT: Taunton Press, 2000.

PATH Technologies, "Advanced Framing Technologies: Optimum Value Engineering (OVE)" Toolbase Services, www.pathnet.org.

Weber, William, "SIP or Stick?," Architecture Minnesota, May/June 2003