I work for a central vac center as an installer and my boss says it is OK to drill 2 1/4 in holes in joists vertically and horizontally. He also tells me to drill in any board, laminated, tji, beams, anything. Is there codes for this?

Have a look at this: https://www.askmehelpdesk.com/construction/guidelines-drilling-floor-joist-14534-2.html#post134617