Adding LVL for joist bearing because joists are too short
Adding LVL for joist bearing because joists are too short
(OP)
Good Morning Everyone,
Hope you all had a good weekend.
Have an issue on a jobsite where for whatever reason the floor manufacturer has produced joists that are too short. To reorder new joists would require an extensive amount of rework, so I was wondering if the below is an acceptable repair? Idea is to bolt a LVL to the rim board to provide the required bearing over the foundation, and attach the joists on hangers to the rim board.
This repair detail is for a typical residential house with I joists.
Any further suggestions ? Much appreciated.
Thanks!

Hope you all had a good weekend.
Have an issue on a jobsite where for whatever reason the floor manufacturer has produced joists that are too short. To reorder new joists would require an extensive amount of rework, so I was wondering if the below is an acceptable repair? Idea is to bolt a LVL to the rim board to provide the required bearing over the foundation, and attach the joists on hangers to the rim board.
This repair detail is for a typical residential house with I joists.
Any further suggestions ? Much appreciated.
Thanks!

RE: Adding LVL for joist bearing because joists are too short
What's the base of the stem wall look like? Is it possible to build a pony wall inside the stem wall and tie it back into the concrete? Obviously you would need to check the stem wall for the offset load, but that might be the easiest option if it all works out on paper.
RE: Adding LVL for joist bearing because joists are too short
Although now that I think about it, I suppose this isn't that different from a standard ledger connection. Instead of bolting directly to concrete or CMU you are just bolting to wood. Still, it seems like the LVL will have more freedom to rotate than a wall member would, so maybe that is the difference. What about filling the ledge void with concrete tied into the wall with drill/epoxy and then using a standard ledger detail? Not saying it's 100% necessary but I think I'd feel more comfortable with that repair.
RE: Adding LVL for joist bearing because joists are too short
- Get new I-Joists of the correct length or use different joist material (if possible) of the correct length. This is the best solution but obviously not great in terms of construction schedule.
- Support the joists with a new load bearing wall framed against the concrete wall and supporting the bottom of the joists.
- Sister LVL pieces to each side of the I-joists to gain the additional length needed.
- In keeping with your current detail, I don't hate the idea of adding PT 2x framing directly against the concrete wall to support the rim board. The PT would be fastened to the wall and possibly bearing on the floor slab below.
What is the framing condition at the other end of the I-joist? Is it also supported by a similar shelf in the concrete wall? What are the overall plan dimensions where this problem occurs?RE: Adding LVL for joist bearing because joists are too short
RE: Adding LVL for joist bearing because joists are too short
Hopefully you are being justly compensated for this construction mistake.
RE: Adding LVL for joist bearing because joists are too short
RE: Adding LVL for joist bearing because joists are too short
RE: Adding LVL for joist bearing because joists are too short
Double agreed with Bones that this is crap that shouldn't be accepted
My rule of thumb is that a homeowner should only be offered a patch job to save the contractor's ass if that patch job actually gives a better performance than was originally specified
In this case, the patch will be significantly worse so it's hardly fair
RE: Adding LVL for joist bearing because joists are too short
RE: Adding LVL for joist bearing because joists are too short
ChorasDen had a good suggestion - Adding a stud wall below. If they plan to finish the basement at some point they'll be doing that anyway.
If you contact the I-joist manufacturer they have engineers on staff that can deal with issues with their product.
RE: Adding LVL for joist bearing because joists are too short
RE: Adding LVL for joist bearing because joists are too short