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Placement of strap ties


suobs's Avatar
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Join Date: Dec 2004
Posts: 1,153
FL

04-12-09, 09:24 PM   #1  
Placement of strap ties

I'm using strap rafter ties (e.g., USP RT24F) to tie trimmer studs above windows and doors to the the header, top plate, and beam above it in 2x6 framing. I'm looking at a diagram showing these ties used for this purpose, but it only shows the outside of the wall.

Can someone tell me if these straps are usually installed on the outside only or on both the inside and outside of the framed wall?

I'd just put them on both sides except the recommended fasteners are 16d nails (3-1/2"), with 14 nails at each end of the strap. Even in 2x6 framing, if installed on both sides of studs the nails will be crossing each other in the middle of the stud.

Thanks!

Steve

 
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GBR in WA's Avatar
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04-14-09, 06:25 PM   #2  
The straps you listed are for wood to masonry connection. 6- screws in masonry, 9- 16d nails in wood, for uplift shear. Not applicable to wood/wood, but will work.

http://www.uspconnectors.com/pdfs/rt24fmasonry.pdf

I have never strapped trimmers(under a header) to the header, it wasn't required.
The wall sheathing will connect the two, though just 3-16d toe-nails work.

One side is fine, either or. Remember inside, it will push your sheetrock out, and make for difficult installation. Outside, it bows the wall sheathing........ Be safe, GBAR

 
suobs's Avatar
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04-19-09, 12:04 PM   #3  
The F (flat) straps are primarily for wood. Link below only lists 16d nails as fasteners, so primary application is wood. http://www.uspconnectors.com/pdf-ful...7/85%2C210.pdf

Apparently from the link you posted, they can also be used in masonry with masonry screws.

FL code requires stud plate ties top and bottom all studs, and requires 2x6 on new framing. These things wrap over the top plate and bottom plate and are nailed to the edges of the studs. I doubt sheathing, siding, or drywall will be flat with all that metal underneath! But then, it's a garage . . .

Thanks!

 
GBR in WA's Avatar
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04-19-09, 02:07 PM   #4  
You are correct. I found this: http://www.dca.state.fl.us/fbc/Hurri...draft%20v2.doc

Notice: A104.3.1 talking about minimum 20 gauge straps nailed with 1-1/2" nails, screws, or 8d (2-1/2"0 nails). Be safe, GBR

 
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