Another joist hanger nail question

[Zrxpilot]

Ive spent some time in search and have not found my exact answer.

Building a lean to on my garage. 12' wide x 22' long. Installing the ledger to stud walls. Have a couple questions: Minnesota.

I followed the typical ledger fastener " one up,one down" using 5" ledgerloks. It all worked nicely using one fastener per stud. A friend suggested adding another fastener at each stud location. Should I? I cannot find anyone that has done this or at least publicly detailed it.

I am attaching joists to the ledger with standard hanger joists. While installing the joists I am looking at the 1.5" galvanized hanger nails and thinking to myself " this sure is a short nail". I get it they are sized for hangers and have the correct shear strength but this is a lean to. 4 little nails holding the joist to a ledger that is attached to the garage wall with a bunch of big and beefy lag skrews. The attachment doesn't seem strong enough when you compare the two methods. It seems they should be skrews holding these hangers at the connection of the hanger to the ledger.

Or not?

 

[readhead]

I would use two screws per stud. The hanger nails will be fine. They have been working for fifty years. I think they have a good track record.

 

[Gear Box]

A hanger should have 4 holes for a 16 d nail to be driven at 45 degrees thru the joist into the rim board. Check Simpsons site for specs.https://www.strongtie.com/strongdrive_exteriorwoodscrews/sd_screw/p/strong-drive-sd-connector-screw

 

[bcoke]

I am not an engineer but I stayed at a holiday inn once ........so my 2 bits..... the ledger board has to support ALL the vertical [gravity....snow loads etc] and any horizontal components of said loads [moments if you catch my drift = rotating forces pulling outward] of the lean to...........so it needs maximum connection to studs to transfer such loads......each individual joist only carries a small portion of those forces and the 1 1/2 inch nails only have 1 1/2 inch of stock to penetrate ......on the ledge you do have shething behind it so maybe a 2 inch nail will suffice ........plus they will use at least 4 or 6 of these in each direction so it is more than sufficient........... of course you could always screw the hangers just do NOT use drywall screws as they are not ment for these loads....just my thoughts .....bobbycoke

 

[tjdux]

Agree with screws. They make construction grade screws for joist hangers now days. I feel that its easier to run screws than swinging a hammer anyways.

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[kd3pc]

A hanger should have 4 holes for a 16 d nail to be driven at 45 degrees thru the joist into the rim board. Check Simpsons site for specs.https://www.strongtie.com/strongdrive_exteriorwoodscrews/sd_screw/p/strong-drive-sd-connector-screw

This is the best of the best advice out there....adding more or different nails only cracks the supporting framework and adds nothing to the strength. Actually weakens it.

simpson is THE hanger expert, just follow their engineering and installation advice and all will end well.

 

[theoldwizard1]

Simpson is THE hanger expert, just follow their engineering and installation advice and all will end well.

CONCUR !


If they are true "hanger nails", they are fine. Personally, I like the Simpson screws.

 

[manwithtools]

Good advice, check the Simpson web site for the nailing schedule. Certain hangers require more than the 1-1/2" nails. Some require a 16d driven diagonally through the hanger and both wooden members.

I prefer the hanger rated screws too. If not screws, a palm nailer is worth purchasing for this task if you have more than a dozen or so hangers to deal with.