One hole straps, up or down?

[K8MHZ]

According to the poll the 'screw ups' are the minority.

I would have thought otherwise.....

 

[LarryFine]

I also voted hole-up, despite being told hole-down when I was a pup. If the conduit is being stressed enough to bend a 1-hole strap, it's not going to make much difference.

Simple physics says that, with the hole down, gravity will impart a prying force away from the wall, pulling outward on the screw. With the hole up, there's only shear force.

 

[LarryFine]

According to the poll the 'screw ups' are the minority.

That's okay. I'm used to being an unusual screw-up.

 

[e57]

If the conduit is being stressed enough to bend a 1-hole strap, it's not going to make much difference.

yES - WHAT YOU SAID...

 

[Mule]

My strap orientation is installed based upon where I think the strength is needed...

Just dont sell me those paper thin, one holes straps, ......cuz I'll return them every time.....along with those miny straps that fit either emt or rigid with the fixed bolt........ "Show me some iron"

 

[ohm]

Way on down.

 

[quogueelectric]

According to the poll the 'screw ups' are the minority.

I would have thought otherwise.....

I just follow the recomendations of the manufacturer if anyone wants me to install them upside down on thier license I will gladly install them that way in all future instalations for that person.

 

[ItsHot]

ban them

ban them

Ban the "one" hole straps! Use of 2 hole straps would solve the debate! Kind of like those receptacles that no matter which way you install them, ground is "up"!:-?

 

[LarryFine]

Kind of like those receptacles that no matter which way you install them, ground is "up"!:-?

Like Tom Baker's avatar?

 

[480sparky]

Like Tom Baker's avatar?

So someone else noticed it too, huh?

 

[LarryFine]

So someone else noticed it too, huh?

Noticed what?

 

[480sparky]

Noticed what?

Exactly!

 

[alfiesauce]

Look at any pipe run in any existing commercial/industrial building, were EMT
is strapped with one-hole straps. You will find more EMT pulled off the wall
were the one-holes are on bottom compared to the one holes on top.

I have wondered about this often myself. One thing I fear (being a top one-hole strap guy myself) is that the reason you see the pipe being on the wall more with the top strap method is because if a bottom strapped pipe is bent out of shape the strap could still technically be hanging there because the strap has to bend so far back to let the pipe fall out of it, whereas with a top strap, once it's poped out of place you have to fix it because the pipe is falling down.

don't know if I explained that very well...

 

[hardworkingstiff]

don't know if I explained that very well...

It made sense to me.

 

[LarryFine]

It made sense to me.

Scary, ain't it?

 

[steelersman]

Sure if you're using maluable iron backed straps it wouldn't matter which way you hang them....

yeah it would. you must not be understanding what Karl was saying. He mentioned a good point that I had never thought of before. Thanks Karl. What you said makes perfect sense and I will from now on mount mine with the hole above the conduit.

Also it's "malleable" not "maluable" and it has nothing to do with the excellent point that Karl made.

 

[A-1Sparky]

I like to alternate my straps (one up, then one down for horizontal runs or one left, then one right for vertical runs). This is, by far, a more secure installation than either all up or all down or all left or all right. Some may argue the "ugly" factor with alternating straps, but if you've got an exposed pipe run, does it really matter what the orientation of the straps are as far as being visually pleasing?:wink:

 

[izak]

most conduit that i run is exposed, and I prefer hole on top. for all reasons aforementioned.

of course, this run doesnt include one hole straps, but i put the 3/8" head of the bolt on the strut straps on top. (does that count?)

 

[izak]

heres one that includes one hole straps (I think)
i donno, i really HATE one hole straps. and sheetrock screws.

Im a UNISTRUT kinda guy.

I THINK that these Might have a one hole strap somewhere... I donno... I think so cause this one got a ceiling so its OK


NO CEILING = NO ONE HOLE STRAPS
NO BOX OFFSETS
FILE ALL ENDS Of Unistrut
NO WRITING ON WALLS
NO BS

 

[ohm]

heres one that includes one hole straps (I think)
i donno, i really HATE one hole straps. and sheetrock screws.

Im a UNISTRUT kinda guy.

I THINK that these Might have a one hole strap somewhere... I donno... I think so cause this one got a ceiling so its OK


NO CEILING = NO ONE HOLE STRAPS
NO BOX OFFSETS
FILE ALL ENDS Of Unistrut
NO WRITING ON WALLS
NO BS

Great Job!