TGI Cutting.

[simpleman]

Help!! Hey guys it been a while since I've done any new
construction and I need to know what is allow when cutting
thru tgi to run duct.

If I recall from years ago was, stay two feet from the ends
and at least 1 inch from top and bottom of the top and bottom plate.Also a foot apart from each cut if possible.

Does this still hold true? TIA.

Oh by the way,let me just say I dont miss this kind of work at all,at least with retrofit I have something blocking the wind.Dam its cold!!

[square2round]

I went to the local lumber store and talked with a sales rep who gave me a pamphlet with the proper places to cut into a TJI. Each size TJI was different. The guide came from the makers of the them, so I followed it. I've lost it and need to get another one. I'm going to need it.

[Diceman]

Are you that desperate to go back to new construction or what?????......

[tin_fab]

http://www.trusjoist.com/PDFFiles/6028.pdf

[simpleman]

Originally posted by Diceman
Are you that desperate to go back to new construction or what?????......

I'm hungry!! Just kidding,it a nice infloor project..
Only time I get to do one is when the owner of the home shop around the builder.

Thanks for the info Tinfab!

[1manband]

Simpleman,

If it were me I would get written approval from the builder/engineer befor cutting anything that is structural, or better yet try to get the builder to cut it. I was on a job last year, a new 100k sq.ft. assisted living facility. The plumbers drilled thru a couple hundred TGI's according to the specs from the manufacturer. It turns out they missed the distance from the ends by 2", and a very dilligent inspector caught it. The length of the TGI has alot to do with how far from the ends you can cut and how much you can cut. The replacement of the TGI's was $70,000, and a delay of project fine of $60,000. OUCH.

[simpleman]

I hear you 1manband,I remember when they first started framing home with tgi in my area.
I was doing roughin at that time,the boss told me all is cool you can cut anything as long as you stay 2ft away from the ends, and a foot apart for every supply outlet.

Let me say at that time I was doing piece work,I buzz thru
about 24 town home and each one had to be redone.

I felt sorry for the boss,but my feeling wont hurt at all
well maybe just alittle,but I felt better once I realize that I have more work.

Thanks for the heads up.

[Collin]

In floor heating lines too close together cost us 1200 bucks. We get the contractor to sign the marked joists now....