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Trus Joist TJ Insulated Structural Framing Com­po­nents make it a bit easier to build energy-efficient structures. The line includes R-17 headers and R-30 corners for 2x6 walls, and 21/2-inch-thick R-10 rim board assemblies. Components combine TimberStrand LSL and Dow Thermax insulation. Cost varies, but the maker estimates an average cost of around $14.50 per linear foot.

Weyerhaeuser, 888/453-8358, woodbywy.com.