hi there, i'm thinking of buying this new house that uses floor joists that look like TJI joists. the builder says they use "engineered floor joists". i asked what the name is of the type of floor joists they use and he said the name is "engineered floor joists" or something. so then i played dumb and said that i read something on the internet about TJI floor joists and he said "yes that's what we use". not sure if i should believe him. so my question is this. are there alot of different types of floor joits that look like TJI but aren't?
if a floor joist is shaped like the letter I and the vertical part looks like partical board, does it mean it is TJI?