So my concrete guy was asking about my floor joists, so he could be sure he had the minimum crawl space. I told him the bracket was 9 1/2 inches so they must be 2x10s. After looking at the plans, he said that the 9 1/2 TJI was not the bracket but the joist. I didn't feel too stupid.
So is this 9 1/2 TJI 110 as good as a 2x12? He said they are just as strong but less than half the weight. I guess the county must think they are strong enough or they would have drilled me.
I guess my more important question is - is 9 1/2 inches enough space for insulation? I was thinking 12.