Important Notice: Our web hosting provider recently started charging us for additional visits, which was unexpected. In response, we're seeking donations. Depending on the situation, we may explore different monetization options for our Community and Expert Contributors. It's crucial to provide more returns for their expertise and offer more Expert Validated Answers or AI Validated Answers. Learn more about our hosting issue here.
I-joist flanges cannot be notched, but typically, I-joist webs can accommodate holes of specific sizes for wiring and plumbing. I-joists are engineered wood products that may vary between manufacturers. Refer to manufacturers’ specifications for specific guidelines on drilling/cutting of I-joist webs.
