Conduit support

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alaskan JW

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I saw a new way at work today to support emt in metal stud walls. Take a

piece of 1/4in all thread, drill a 1/4in hole on the two studs that your emt

is between and run the all thread between the two studs(all thread is running

perpendicular to the studs) washer and nut both sides and then use batwings

(a caddy support fitting. we call them batwings) to strap conduit to the all-

thread. has anyone ever tried this? Has anyone got any input on if this legal

or not? I know we usually hang things from all thread but has anyone

ever seen it used this way?

thanks
 
alaskan JW said:
I saw a new way at work today to support emt in metal stud walls. Take a

piece of 1/4in all thread, drill a 1/4in hole on the two studs that your emt

is between and run the all thread between the two studs(all thread is running

perpendicular to the studs) washer and nut both sides and then use batwings

(a caddy support fitting. we call them batwings) to strap conduit to the all-

thread. has anyone ever tried this? Has anyone got any input on if this legal

or not? I know we usually hang things from all thread but has anyone

ever seen it used this way?

thanks
Click to expand...
I haven't.

Around here, we use Caddy SGB/TSGB and a one-hole strap. The SGB/TSGB aren't listed as conduit supports AFAIK, but the inspectors don't seem to mind.


 
This method is fine but IMO a very costly installation since it's rather labor intensive. Actually I see plumbers do this all of the time on commercial jobs to support their work. Caddy actually makes a bar with retainer clips to hold it in place after you punch the holes in the studs. Those are cheaper and faster than using threaded rod.
 
I agree that it would be permissable, but costly.

Why not use pieces of scrap metal studs that are usually lying all over the place, along with screws.
The 'Metal Stud Guys' have always allowed us to 'clean up' their scraps for this purpose (ask first).
Then 1-hole or 2-hole strap to that.

Much less material cost on our end, and less scrap going in the dumpster.
 
I don't have any problem with the legality of that method, but I'd get pretty up tight about it's wastefulness. The Caddy part is about $1.00, and metal stud scraps are free.
 
Caddie

Caddie

One Classic Caddie clip, one threaded rod, one side, and only used
as where required in a pinch, I'm not giving the Plumber nothing ...
 
Fortunately the rules for support are just that -- support. The method is fine.
But I like the creativity.
I needed to support a conduit about 8" above a metal stud wall. So I drilled a 3/8" and added ~7 1/2" of 3/8" all-thread, a couple of nuts and washers and a Minnie [conduit hanger]. 3/8" is much stiffer than 1/4".
Sometimes the framers use heavy gauge material and they chop off maybe 3" or 4" inches off the studs. I take these scraps and break them in two. These make a couple of ~4" angle brackets which I can screw to the stud and use a one hole strap, thus alleviating the need for hidden complex bending to get the conduit next to the stud for support.
I am especially fond of the 1 1/2" angle they use. Invest in a couple of pairs of ViseGrip "C" clamps, the plain end type.
~Peter
I wish I could post a picture but my drawings are in TurboCad.
 
peter said:
...I wish I could post a picture but my drawings are in TurboCad.
Click to expand...
I post "pictures" here from my TurboCAD on occasion. To do so, I get the view I want in the TC's interface, press Print Screen on keyboard (which copies the screen image to the Windows' Clipboard), Paste, crop, and Save as a gif or jpg in my favorite image editor.
 
I will try this.
I think I have an image from TurboCad as a print screen saved as .hml from Word. I could open it in Irfanview but couldn't get any further.

[Later] Well I tried. The one big problem I have with TurboCad is that it doesn't seem to be able to save into a gif format. I got the screen shot saved via Word. Do you have any step by step suggestions?

~Peter
 
peter said:
If you don't mind, here is another test:
Click to expand...
Success!!!?

For larger images use Photobucket.com to act as your image web server and either use the Insert Link or the Insert Image icon of the Reply window.
 
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We just adopted the IRC so I probably couldn't do this any longer, but when I used to contract lots of commercial jobs, I would stop at the lumber store and get about 10 8' long 1"x3" treated boards. That was about 8 bucks worth in those days. And I would bring a chop saw and some drwyall screws to hold the wood into the studs, and to secure my jiffy straps. I was pretty fast doing strapping this way. But since wood is combustable I wonder if this would still fly.
 
Smart $ said:
Around here, we use Caddy SGB/TSGB and a one-hole strap. The SGB/TSGB aren't listed as conduit supports AFAIK, but the inspectors don't seem to mind.


Click to expand...

Same here.

Here is a job I ran.

Barestud2.jpg


We use a lot of Caddy stuff

Barestud1.jpg



I am not against using the stud scraps and have many times, but if you need a lot of them there may not be enough scrap and a lot of the jobs we work on use such heavy studs it is to hard to use tin snips to cut them up.
 
Thats intersting box work, I don't know people still used the interior cable straping... :) I've only only ever used 1/2" quick connecters, or 1/2" flex connectors, looks like a money & time saver to me ... Good show
 
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