CertiWood™ completes I - Joist Development WorkCertiWood™, North Vancouver BC recently completed a year-long project with Tolko Industries focused on developing, building and evaluating wood I-joists, in preparation for their planned I-joist plant in Alberta. CertiWood™ is accredited to provide a variety of certification and testing services related to engineered wood products. |
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I-Joist Project Summary: CertiWood™ Staff built wood I-joist prototypes in their custom-built press. The press was 25’ long and replicated in-mill pressing and curing conditions. |
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| Once manufactured and cured, the 25’ I-joists were destructively tested in CertiWood™’s Long-Span Beam Tester. Test results were used to evaluate the adequacy of the adhesive, the OSB and the flange-stock. The tests also benchmarked performance for further improvements to the I-joist’s construction. |  |
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| CertiWood™ technologists machined the OSB webs in our Panel Edge Profiler. Web tips were custom cut for a proper fit into the flange groove. CertiWood™ engineers worked with the client to maximize the strength in the web-to-flange connection. |   |
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| Finger-jointed flange stock was destructively tested in CertiWood™’s Tension Tester, to quantify strength and ensure adequate design values. CertiWood™ engineers used these test results to help develop with the client, custom grade rules to optimize recovery. |
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