Framing a house using engineered wood has many advantages. Glue laminated beams are stronger than their conventional solid sawn counterparts. (Laminated veneer lumber comes in smaller dimensions for headers and ridge beams.) Engineered I-joists span greater distances and their stiffness prevents squeaky floors. Oriented strand board sheathing prevents racking and provides good nailer for siding.

Bob outlines the steps involved in framing up the house. Once the first floor joists were in place, the crew started in on the subfloor using ToughPly, a thicker plywood product from Georgia-Pacific. A single layer of ToughPly can be used under hardwood, tile, or carpet, and its quick-fit tongue and groove design saves time fitting the panels together. Next the crew framed the sidewalls with Riverside CDX plywood sheathing harvested from sustainable forests in British Columbia. While only slightly thicker than standard OSB or plywood, it's three times as stiff for a greater load carrying capacity and its favorable weight to strength ratio makes its easier to work with.

Bob and Ryley meet up with framing contractor Kevin Parquette of Timberline Building Specialists. Kevin comments on the advantages of working with the 28 ft. long engineered wood All-Joists from Boise Cascade. Designed for high performance and stiffness, All-Joists significantly speed up the framing process. Next Kevin points out the 1 1/8" engineered wood rim board. For fastening Kevin's crew used 12-penny nails covered with a glue which is activated by the speed of the nail coming out of the gun.