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Wood I-joists are available for use in roof and floor joist applications. Produced by different manufacturers, I-joists are currently not built to a common standard. The database file supplied with Sizer is for APA Performance Rated I-joists (PRI). It is intended to be modified using Database Editor to match the properties of the I-joists you are using.
You are advised to contact your I-joist manufacturer or supplier for complete design data on the particular type of I-joist to be used.
have these capabilities.
5. I-joists are assumed to be fully laterally supported top and bottom, and are not designed for buckling effects.
6. Unlike solid cross-sections, shear is evaluated at the support instead of a distance from the support that equals the depth of the joist.