Hangers?

[Peter C. Russell]

Kenton, out here it is rare to see top flange hangers. Most everything is hung with typical joist hangers, hence the problem with shrinkage. Competition in the building trades is very high here and the per square foot costs are relatively low compared with the work involved, so the faster they go the more money they make, quality takes a back seat.

[Marcel R. Cyr]

I would imagine that if one would use TJI joist that the center beam would be of a type of LVL or if one choses to use 3 two x's they would still use the top beam mount hanger, and this would allow a 1/8" gap between the top of the carrying beam in relation to the top of the tji's which would prevent any bump in the floor system. This is usually the common hangar to use in this type of framing.

JMO

Marcel

[Peter C. Russell]

Your correct Marcel, it should be done this way but many times is not. I have seen tgi's attached to a triple 2x10 main carrying beam with regular joist hangers, if the tgi's are flush to the top of the main 2x10 beam and it shrinks because it was green when installed, then the tgi's push against the sub-floor pushing the finished floor up, even if it's only a little bit it's noticed.

[Kenton H. Shepard, CMI]

Well it's true, practices and attitudes about what's OK vary a lot from one part of the country to the next. As long as it's safe and it works it's hard to argue with.