11 7/8" TJI55QE
11 7/8" TJI55QE
(OP)
I am trying to add a new large RTU to an existing building. The building has wood roof joists supported by steel girders. The building was built in 1994 and we have a set of design documents from when they built the building (although they are very water stained and damaged).
The existing drawings call for 11 7/8” TJI/55QE wood joists at 32” o.c. and 11 7/8” TJI/35 wood joists at 24” o.c. (in different areas of the building).
What could the QE in the joist tag stand for? I have literature from truss joist for TJI/55 joists, but I have seen to this point tells me what QE could stand for.
The existing drawings call for 11 7/8” TJI/55QE wood joists at 32” o.c. and 11 7/8” TJI/35 wood joists at 24” o.c. (in different areas of the building).
What could the QE in the joist tag stand for? I have literature from truss joist for TJI/55 joists, but I have seen to this point tells me what QE could stand for.






RE: 11 7/8" TJI55QE
RE: 11 7/8" TJI55QE
I have that document already, does it say in there what QE could stand for? I see DF and SP but not QE.
RE: 11 7/8" TJI55QE
RE: 11 7/8" TJI55QE
"Have you heard of this..."
"Never. It's a misprint of 550e. Which designated osb Web and lower moe. 2.0 instead of base 2.2 I believe."
from another old TJ guy:
"It’s a TJI 55OE. Not “Q”."
RE: 11 7/8" TJI55QE
Mike McCann, PE, SE (WA)
RE: 11 7/8" TJI55QE