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Old 05-24-2013, 08:31 PM   #1
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Deck ledger question


I want to make around a 5-6 step to the threshold of my slider because I live in New England. This puts my ledger board having to attach mostly to the double sill plates and around 1.5" over the poured concrete foundation. Any suggestions on fasteneing? Can you do combo wood lags on top and masonry type bolts on the bottom?

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Old 05-24-2013, 09:02 PM   #2
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Deck ledger question


Got a picture where you want this.
#1 Last thing I'd want is a ledger attached the the side of the house, to much chance of damage to the home.
#2 You need a stoop, then the steps to make it legal.
#3 That stoop needs to be at least 6" below the threshold of the door or waters going to get in and take out the sheathing and flooring.
The stringers need to be set on a concrete pad or at least patio blocks our there going to rot.

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Old 05-24-2013, 09:15 PM   #3
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Deck ledger question


Sorry if I was not clear. The deck is going to be the 5-6" step from the threshold. The deck is 17" above grade and that will get some steps to grade along the frontside of the deck.

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Old 05-24-2013, 09:48 PM   #4
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Deck ledger question


what is the depth of your floor joists in the house? you have a single sill plate correct?

what is the size of your ledger board?
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Old 05-24-2013, 10:31 PM   #5
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Deck ledger question


You need to think about how to properly flash the house to the ledger strip. As far as fastening to wood or concrete, I would use minimum 1/2 inch hot dipped galvanized through bolts through both your band joist and concrete. I don't trust lags in this application.
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Old 05-25-2013, 12:40 AM   #6
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Deck ledger question


Depends on your local building department, I guess.

I have spec'ed wedge anchors and LedgerLoks before and was fine with the B.D.

Andy.
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Old 05-25-2013, 07:35 AM   #7
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Deck ledger question


The sill is a double 2x6 and the rim is a 2x8. My ledger board is 2x8. I plan on making a 10' wide (along.the house) by 6' deck. If I make the ledger flush with the bottom of the sill I will have a ~3.5" step to the threshold. It's less than I would like but if its a pain to do combo concrete/wood ledger attachment I might have to.

Floating deck is out of the question because I am not making my footings as deep as the house foundation.
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Old 05-25-2013, 08:33 AM   #8
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Deck ledger question


Gosh... I've never had a problem with attaching a ledger accross framing and stem wall (either construction/engineering/ or building official)

Yes... you want to flash it. ..Stagger your fastening... bolt if feasable...

And you want to keep your concrete fastners (redheads?) at least two inches from the top of your stem wall. (If your ledger doesn't fall there, I just use a wider ledger.)


EDIT: As far as a big PIA, I don't think so unless you don't have a good concrete drill (Bosh Bulldog maybe)
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Old 05-25-2013, 02:00 PM   #9
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Deck ledger question


Ledger fastening; Fig. 14,15.

Fastener spacing; Table 5, Fig. 19; http://www.awc.org/Publications/DCA/DCA6/DCA6-09.pdf

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Old 05-25-2013, 02:15 PM   #10
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Originally Posted by Gary in WA View Post
Ledger fastening; Fig. 14,15.

Fastener spacing; Table 5, Fig. 19; http://www.awc.org/Publications/DCA/DCA6/DCA6-09.pdf

Gary

What a great handy reference... Thanks
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Old 05-25-2013, 04:08 PM   #11
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Deck ledger question


Thanks. I've been following that. I wish it had the answer to my question. I will most likely just have the ledger flush with the bottom sill and deal with the short "step" to the threshold.
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Old 05-25-2013, 04:14 PM   #12
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Thanks. I've been following that. I wish it had the answer to my question. I will most likely just have the ledger flush with the bottom sill and deal with the short "step" to the threshold.
Lang... of course whatever is easier and ya wanna do.... but you could always just ask your ahj... It's really not difficult.... assuming you do have a concrete drill...honest.
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Old 05-25-2013, 04:32 PM   #13
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I was planning on calling the town but they are closed until Tuesday and I want to get as much done as I can, but I dot do things that I'm not 100% comfortable with so I can wait until I come up with or find the best solution.
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Old 05-25-2013, 05:02 PM   #14
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Originally Posted by langless28 View Post
I was planning on calling the town but they are closed until Tuesday and I want to get as much done as I can, but I dot do things that I'm not 100% comfortable with so I can wait until I come up with or find the best solution.
Gotcha
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Old 05-25-2013, 06:07 PM   #15
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Deck ledger question


check out this video from Glenn Mathewson

if my math is correct your finish floor should be around 11-1/2" (3" for sill + 7-1/4" for rim + 3/4" for subfloor + 1/2" more or less for finish floor) above the top of foundation, if you have a 5" step down + you deck board (1" more or less) + 2x8 (7-1/4") this should put the bottom of your ledger about 1-1/2" below the top of foundation.

you are suppose to (per 2009 IRC, the basis of our building code in Mass) keep your bolts 2" from the top and bottom edges, this would put your bottom bolt into the bottom plate of your double sill plate. set the top bolts 2" down from the top of the ledger.

Hope this helps.

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