Replies

1. 
   BUSTER | Dec 08, 2003 04:09am | #1

   Hey..

   You might want to use a minimum size 5/8" carriage bolt w/ as the rep. stated installing a web stiffiner (if possible..I would use solid-sawn 2x for this).

   As for the spacing of the bolts, you may want to contact a local of your jurisdiction.

   Good luck.

   Tony

1. 
   jacobuilt | Dec 08, 2003 02:54pm | #5

   Blocking at every bolt seems to be the way to go. Possibly from mud sill to bottom of subfloor. The code states 3'6"on.c for bolts doesnt mention lags. This may be a real good place to use blots instead of lags. Thanks for IT. Bobby

2. 
   LarryG | Dec 08, 2003 06:03am | #2

   you might want to check with the building dept. lags are not code in many places through bolts are called for and I agree with the 2x

3. 
   MojoMan | Dec 08, 2003 06:16am | #3

   What kind of sill do you have? Double, solid 2x? Can you lag into that?

   Al Mollitor, Sharon MA

1. 
   jacobuilt | Dec 08, 2003 02:48pm | #4

   The TJI is 11  7/8'' wide so unless I drop the deck down Ill miss the sill plate. Lags a kosher here in WNC. Could cut 2x material and sandwich the TJI between the deck ledger and the 2x. Thanks for thoughts. Bobby 

1. 
   Framer | Dec 08, 2003 03:02pm | #6

   If you used a TJI as your outside box and not a rimboard or a microlam for a box which I use a microlam for a box when I know there will be a deck bolted to it, you have to have vertical stiffeners 16" o.c. following your studs above anyway. You can't just use a TJI for a box/rimboard without stiffening it up.

   Did you get a manual with your TJI's because it shows you how to do all this?

   Is the deck running perpendicular to the joists or parallel to the joists?

   Joe Carola

   Edited 12/8/2003 7:09:40 AM ET by Framer

1. 
   jacobuilt | Dec 09, 2003 02:26am | #9

   The ledger or deck band against the house is running perp. to the joist. Listened to the salesman and obviously did not look at the booklet well enough. Oops. thanks Bobby

1. 
   Framer | Dec 09, 2003 02:53am | #10

   The ledger or deck band against the house is running perp. to the joist.

   Instead of using a rimboard, did you use TJI's for blocking in between the full bearing TJI's?

   Is this house sheathed yet? You probably mentioned it above but I didn't go back and read all the posts tonight.

   Joe Carola

2. 
   jacobuilt | Dec 11, 2003 03:17am | #12

   Oh, the TJI's are running parallel to the deck band. The deck joist are perp. to the band(obvious),SSSSSSSSorry. 1/2" osb wall covering, 1/2" osb web stiffener and 1/2" web gives me 1 1/2 ". Enough to keep the bolt from pulling through? Bobby

3. 
   rasconc | Dec 11, 2003 05:43am | #13

   Where in WNC?  I am really surprised at the number of folks on this forum from NC.  Old Fort here.

4. 
   jacobuilt | Dec 12, 2003 03:34pm | #14

   Living right up the mountain from you in the heart of Asheville. Bobby

5. 
   dIrishInMe | Dec 12, 2003 05:15pm | #15

   I'm down the (big) road from you both just south of Raleigh.Matt

6. 
   jacobuilt | Dec 13, 2003 03:10am | #16

   Originally from Fayettville. Way to hot in the summer to stay there. Although, it must be nice to build on flat ground.

7. 
   decornut | Dec 10, 2003 12:46am | #11

   I'm very confused.  Your original post talked about packing out the web with OSB, which, to me, makes it sound like the ledger is parallel to the joists.  But now you say the ledger is perpendicular to the joists ?  Sorry if I'm just being dense.

2. 
   dIrishInMe | Dec 08, 2003 08:38pm | #8

   Bobby:

   I went through this same thing some years ago, only with LP I-joists.  The recommendation of the manufacturer's "tech support" was as you said - pack out flush the outside of the I joist with OSB sheathing.  Nailed and glued.  It sounds like our situation was a bit different as the engineering drawings that came with the floor systems specified rim board around the entire perimeter.  I have seen some I-joist floor systems installed where rim board was only used on the joist end sides of the hose though.

   BTW - You said "Lags a kosher here in WNC."  Can I translate that to mean 'Lag bolts are kosher here in Western North Carolina'?  If that is what you meant, check the NC state code!!!  Although they are acceptable in many states, Lags are *not* acceptable in NC, nor have they been for at least 10 years.  Gal 5/8" bolts with washers on each side and nuts are required.  36" o.c. for deck <8' wide, 18" o.c for decks >8' wide.  Some local code enforcement officials may not enforce it, but it is the state wide code, and they do not have the authority to *reduce* code requirements.   If you want more info, let me know, and I'll see if I can find it in the *incomplete" online NC code book.  Personally, I think lags are adequate for small decks or low decks, but are needed for large and/or high ones - remember the recent Chicago porch collapse?  Not that it was necessarily found to be directly attributed to the use of lag bolts, but from the pics you could see that the ledger board came off the house...

   To reinforce your end I-joist at the point of bolting up your deck, If you have some extra rim board, rip it down to the width of your I-joist web, and glue/nail it in place on the  inside.  IMO the use of washers on the inside helps a lot too. Matt

4. 
   BossHog | Dec 08, 2003 03:41pm | #7

   I'm also curious about what "Framer" asked - Is there no rim board?

   Bumpersticker: If you must burn our flag, please wrap yourself in it first