Occasionally during utility installation, TJI® joist flanges or webs are damaged to the degree that a repair may not be practical or possible. For these situations, a common way to repair the damaged TJI® joist is to install headers on both sides of the damaged area, attached to the adjacent TJI® floor joists. The bulletin below shows header installation details along with joist span/spacing scenarios where the header detail is acceptable.
TB 319 - TJI® Joists Header-Off Table
Watch the video here for more info - The Plumber's Box
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