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2x6 vs 2x4 House Framing

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What is 2x6 construction? It is the 2x6 stud that is used to frame the exterior walls around the whole house. 2x4 studs are used for interior walls. It is something you must think about and decide when deciding to build.

When building your dream house There are a variety of opinions regarding 2x6 construction. Some would say, that it is cheaper to build with 2x4's instead, because it is cheaper and requires less insulation. One builder I heard from stated " 2x6's may add an increase in depth for and to include a 'thicker' insulation but this insulation alone will not insulate a home 'better' than a 2x4 wall with proper treatment..."

I would disagree. The benefit of more insulation is long term. It increases energy efficiency, and if combined with 2x6's with 24-inch centers, rather than 16 inch, can reduce labor cost, allow for more spacing for insulating around piping, wiring and ductwork, and also provide more room for R-19 or R-21 wall insulation. It is far more economical in houses that are in a more cold winter environment, or homes in which windows are doors occupy 10 percent or less of the total wall area.

There are some significant costs to 2x6 construction, the window and door jambs must be wider, requiring the purchase of a jamb extender which can increase the cost by $12 to $15 per opening. The cost of 2x4x8' studs is 40% less than a 2x6x8' studs. On top of that, there are the bottom and the two top plates. Then there is the added cost for the extra insulation, as well as, deeper windowsills.

Some contractors will say that 2x4 construction is structurally as good as 2x6. They can easily support the house structure and weight. Most would agree, the main reason is insulation and the energy benefits. I prefer 2x6, and most Realtors and buyers ask about this, and prefer it as well. Is it necessary? Its debatable,. All of my houses that I built were 2x6, and I think the costs paid off.