Does anyone know if they changed that in the 2018 IRC?
I found this:
R507.5.1 Joist bearing. Joist bearing shall be provided in accordance with Section R502.6 and fastened to the beam in accordance with Table R602.3(1) and to the joist hangers per the manufacturer. Joist hangers shall have a capacity as specified in Table R507.5.1.
This makes it sounds like every joist attached to a beam MUST be attached with a joist hanger. If that’s the case, a ledger strip alone would not be enough to support the joists. Or am I misreading here?
If true, do we need to change the training materials in the class? Also, how would you address this in a report?
the training I think is not showing the ledger beam is the only thing holding up the joists, the joists would also be nailed to the ledger, this training is just showing different ways it can be attached. As with the new 2018 code Yes joist hangers are to be used on every joist. but on a older house , it was code when it was built if it looks good. we are not code police. We cant call out items that are no longer code. as it was when it was built.
I see. I guess as long as it’s in good shape, there isn’t necessarily a defect to report, though it’s still worth mentioning the “newer and safer connections” Larry mentioned.
It won’t be any safer if you do it without a permit and you need one! It will only be more expensive (fines for permits after the fact). I can see newbies telling people they don’t need a permit based on that information (and be wrong).
I have added some text in the How to Perform Decks Course for clarity about deck joists connected to deck beams and ledger boards.
The illustration in the course shows a floor joist properly resting on a 2x2-inch ledger strip, according to 2021 IRC R502.6.2. But in relation to deck joists, the 2021 IRC R507.6.1, it says that deck joints that connect to the side of a deck beam or ledger board must be supported by approved joist hangers. As we know, it’s ultimately up to the local authority to recognize, adopt, and enforce the building code.
R502 is wood floor framing. R507 is Exterior Decks. If I am building an exterior deck why would I follow codes for wood floors and not the section exclusively for “Exterior Decks”? Starting with the 2012 IRC.
