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Foundation Bolts, Straps, or LDT's

14K views 25 replies 7 participants last post by  matthewcims  
#1 ·
We like straps. Chalk all of our lines to square up the sill plate. Staple the sill pad to the bottom and use our Hilti powder acuated gun to pin it down. Nail the straps and off we go without having to deal with bolts landing where our i-joists end up. Today our client changed the concrete patio to finished space. :thumbup: We had not poured the concrete yet so the area was dug out, turned into a crawl space, and i-joist's added. To attach the sill, since straps were not put in at the time of the pour, we used 1/2" x 4" LDT's. Just curious on other framers preferences.
 
#7 ·
Your generally pretty fine to nail. I just try to keep the nail about 3 inches from the edge of the foundation.

When there is to be siding on the particular wall, there is a let in green 2x4 in the concrete so you can fasten the plate to the foundation using regular nails.
 
#8 ·
Never seen anything besides bolts here. Never even heard of anyone using anything besides such here i'll add. If a bolt lands directly on a joist that can not be shifted an inch we just double the rim and hanger it off (unless 2x6 sill then enough bearing).

And nothing is ever perfect level around here. I'll admit it. Foundation we just started on is far from flat. Ordered an extra 2 bundles of shims to help it along and they are gone. Sad when you goto snap a line and the line is floating nearly an inch in spots. Someones laser musta been a tad off...
 
#10 ·
If the foundation has set for awhile you do need to keep your nails back from the edge as stated above. Hilti makes a washered galvanized pin that works great for temp fastening. We usually are setting the deck a few days after the walls our poured so the nails sink pretty decent. On a side note..that Hilti gun is an awesome way to attach 2x to steel!
 
#15 ·
On a side note..that Hilti gun is an awesome way to attach 2x to steel!
Those guns are awesome period.

My first introductions was a commercial job attaching metal track to a 1/4 steel I beam. I would've bet money it may have dented the steel but that's about it...it went right through easily and was definitely not coming out.

I had to have one. Expensive, but worth it. Same job, I burned-up my DeWalt hammer drill on the 6k psi concrete. I bought a Hilti, went right through like it was wood. They make great tools. They're the only two I have.