If you did ask about I-joists, there'd be a series of articles on Carpentry News complaining about how you ask overly academic interview questions. Carpenters

If you did ask about I-joists, there'd be a series of articles on Carpentry News complaining about how you ask overly academic interview questions. Carpenters with "fifteen years of experience" would talk about how they haven't made a single I-joist since they were an apprentice. If they ever needed to make a "California Corner", they'd just look it up on YouTube and it's pointless to expect them to know it off the top of their head. They'd then explain that what you really should be asking in the interview is a series of questions about the specific wavelengths of light reflected by different brands of brown paint, because painting things brown is 95% of what a carpenter does and the rest is just wood-gluing together prefab parts from the factory.