Can I use lumber joist IBS for engineered wood I-joist applications and vice versa?

No. IBS units are manufactured to exact sizes for each material and on-center spacing to insure a tight fit. Use only the IBS unit manufactured for your specific application.

Note: one I-joist is made to the same size as dimension lumber joists. Lumber joist IBS may be used with this brand of joist only. More.

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