XJ 85® I-Joists
Find your ductwork's happy place. Run it in conditioned space.
The XJ 85® I-joist from Georgia-Pacific is an innovative engineering achievement, combining radical hole shaping and placement with the stiffness and quality you expect from Georgia-Pacific Wood Products. The strategically located pre-cut openings allow ductwork to be run in conditioned spaces, out of extreme attic temperatures. This helps lower heating and cooling loads, and helps increase energy efficiency. Plus, the lightweight construction and wider on-center spacing of the XJ 85 joists contribute to lower installed cost
Inquiries
For sales inquiries or more information on the XJ 85 joist, please call 800-284-5347.
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XJ 85® Wood I Beam Joists
- Strategically placed openings accommodate plumbing, wiring and duct work.
- Installing ductwork through the XJ 85 joist in conditioned spaces can help lower heating and cooling loads and improve energy efficiency.
- XJ 85 I-joists are available in 16" depth and standard lengths from 6'- 26' - trimmable on-site to fit perfectly.
- Flexible accommodation for plumbing, wiring, and HVAC saves time on planning and cutting holes in the joist.
- Openings are closer to the end of the beam, closer together, and wider than ever, providing increased architectural and construction versatility.
- Rounded corners of the openings contribute to smooth, fast installation.
- FASTBeam® and FASTPlan® software assists in providing structural analysis and planning for floor designs.
- Customers can take pride in reduced timber consumption, usage and the ecologically-friendly nature of engineered wood.
Lower Installed Cost
- Lightweight construction and wider on-center spacing reduce labor and materials.
- Pre-fabricated lengths, pre-cut holes, and on-site trimmability reduce wasted materials and time.
- Strength and load capacity minimize bounce and deflection - stiffer floors mean fewer callbacks and happier customers.
- A single layer, 1-hour fire-rated assembly is available.
Our Installation Guide for the XJ 85® I-joist details a certified one-hour fire-resistance-rated assembly that includes the following components: minimum 23/32" tongue and groove APA rated Sturdi-Floor® plywood sub-floor, galvanized steel furring channels, one layer of 5/8" thick, Type C gypsum wallboard, and minimum 2" thick, 4 pcf density mineral wool insulation batts.* Although most residential structures (one- or two-family residential dwellings) do not require fire-resistance-rated assemblies, the inclusion of a protective membrane such as gypsum board can improve fire performance.
*Passing a fire test in a controlled laboratory setting and referring to an assembly as having a one-hour, two-hour, or any other fire resistance or protection rating does not mean that either the particular assembly/system will necessarily provide one-hour fire resistance, two-hour fire resistance, or any other specified fire resistance or protection in an actual fire. In the event of an actual fire, you should immediately take any and all actions necessary for your safety and the safety of others without regard for any fire rating of any assembly/system. For more information, please visit www.gp.com/safetyinfo.
Our Installation Guide for the XJ 85® I-joist details a certified one-hour fire-resistance-rated assembly that includes the following components: minimum 23/32" tongue and groove APA rated Sturdi-Floor® plywood sub-floor, galvanized steel furring channels, one layer of 5/8" thick, Type C gypsum wallboard, and minimum 2" thick, 4 pcf density mineral wool insulation batts.* Although most residential structures (one- or two-family residential dwellings) do not require fire-resistance-rated assemblies, the inclusion of a protective membrane such as gypsum board can improve fire performance.
*Passing a fire test in a controlled laboratory setting and referring to an assembly as having a one-hour, two-hour, or any other fire resistance or protection rating does not mean that either the particular assembly/system will necessarily provide one-hour fire resistance, two-hour fire resistance, or any other specified fire resistance or protection in an actual fire. In the event of an actual fire, you should immediately take any and all actions necessary for your safety and the safety of others without regard for any fire rating of any assembly/system.
