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Old 10-01-2013, 10:22 AM   #1
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Ledger Length


I'm building a deck that is 16' wide attached to the house. Does the ledger need to longer 16' or can I use the hidden fastener joist hanger and go right to the edge of the ledger?
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Old 10-01-2013, 10:47 AM   #2
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The latter. Aesthetics count when building a deck :-)

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Old 10-01-2013, 12:24 PM   #3
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Ledger Length


If you are stuck with a ledger attachment instead of a free-standing deck, make sure it is connected with the appropriate fasteners that may be required (through bolts and not just lag screws or nails). Also, make sure the entire ledger and fasteners are well flashed to prevent the feared moisture and rot.

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Old 10-01-2013, 01:10 PM   #4
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Originally Posted by concretemasonry View Post
make sure it is connected with the appropriate fasteners that may be required (through bolts and not just lag screws or nails).
Lag screws are fine. They need to be at least 3", and they need to sink into at least 1.5" of the home's rim joist. If you have a double rim joist or you can sink the lag screws into the home's joist ends, you can improve the connection by using longer lag screws. Now, if you have a basement or crawl space, and the home's first floor framing is exposed, then likewise, a through bolt (a.k.a., carriage bolt) is encouraged, as it will provide the greatest pull-out resistance.

Nails or decking screws...absolutely not.

Of course, none of this applies if you're tying into a concrete slab.

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Old 10-01-2013, 01:43 PM   #5
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Many municipalities will not allow lag screws and want through bolting. That is the right of a locality to have that requirement based on history of problems. A locality can always over-rule a model code (IBC, etc.) as long as it more restrictive since the model codes are the minimum standard and not always the best way to do things. They leave the scraps for those that just want a "cook-book" solution and not a good recipe.

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Old 10-01-2013, 01:45 PM   #6
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Thanks guys,
I'm following awc.orgs prescriptive deck construction guide. It will be fastenmaster ledgerlocks and Strongtie lateral holddowns. There's no siding on that side of the house so there are no excuses for not flashing correctly. I've even put 36" IWS up the side. for the first layer against the sheathing.
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Old 10-01-2013, 02:39 PM   #7
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Quote:
Originally Posted by concretemasonry View Post
Many municipalities will not allow lag screws and want through bolting. That is the right of a locality to have that requirement based on history of problems. A locality can always over-rule a model code (IBC, etc.) as long as it more restrictive since the model codes are the minimum standard and not always the best way to do things. They leave the scraps for those that just want a "cook-book" solution and not a good recipe.
Fair enough. Which is why it's always wise to check with the local building inspector when in doubt. If the OP solely listened to me, he may have found out his jurisdiction requires a connection stronger than what default code prescribes. If he listened to you, he may have needlessly torn up a finished basement ceiling. Multiple opinions usually lead to the best advice.

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Old 10-01-2013, 02:49 PM   #8
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ClutchCargo,

When I built my patio in 2009 with a ledger board I contacted Ledger Lock and received a complete engineering report that I brought to my city building department to get an approval. The city engineer was impressed with the shear strength the Ledger Locks provided. I also used more fasteners than was required by code. This is MY house and I had more than enough.
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Old 10-01-2013, 09:13 PM   #9
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That was good planning. The LedgerLoc has 70% of the "withdrawal" resistance as a 1/2" lag screw..... hence the closer on-center spacing required for them. Follow the manufactures instructions that differ from deck code.. When using lags, if permitted as said, the 1/2" long tapered tip is required to extend past the house framing (single 2x), not counted for the screw length, Fig. 20; http://www.awc.org/Publications/DCA/DCA6/DCA6-09.pdf

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Old 10-02-2013, 06:51 AM   #10
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With code now requiring separate lateral ties for deck attachment, is pullout strength for lag screws really a concern?
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Old 10-02-2013, 07:32 AM   #11
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Quote:
Originally Posted by Clutchcargo View Post
With code now requiring separate lateral ties for deck attachment, is pullout strength for lag screws really a concern?
If your area follows the 09 IRC then figure 14 and 23a in the Prescriptive Guide both apply.

http://publicecodes.cyberregs.com/ic...002_par014.htm

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