DIY Frequently Asked Questions / I-Joists
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DIY Frequently Asked Questions / I-Joists')">
Composed of thin OSB or plywood web that is bonded to the top and bottom flanges of lumber or LVL. - Typically 9-1/4” to 30” deep and up to 60’ long.
- Used as a structural component in roof and floor systems.
- Some come with pre-drilled knockouts for easier plumbing and electrical installation.