5 proven ways to optimize framing

2. 2x6 Framing Placed 24 Inches On Center

Framing members are traditionally spaced 16 inches on center (o.c.). Advanced framing methods increase member spacing, typically to 24 inches o.c., effectively trimming the number of required studs by about one-third (Figure 3). Walls built with 2x6 wood framing spaced 24 inches o.c. have deeper, wider insulation cavities than conventional 2x4 framing spaced 16 inches o.c., thereby increasing the amount of insulation inside the wall and improving the whole-wall R-value. For example, an advanced-framed R-20 code-compliant wall system provides a greater whole-wall R-value than conventionally framed 2x6 walls with studs spaced 16 inches o.c. or code-minimum 2x4 walls sheathed with foam.

FIGURE 3

With reduced framing members and larger cavities, the efficiency of other trades will be enhanced. More space between framing members means fewer studs for plumbers and electricians to drill through and fewer cavities for insulators to fill. If a builder is switching from a 2x4 stud wall to a 2x6 stud wall, the decreased number of pieces typically offsets the cost of the deeper framing members, providing more efficient insulation, often for the same or less cost.