# Cheeseboroughs not rated?

#### gafftaper

##### Senior Team
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My local theater supplier tells me that they are no longer selling the traditional iron cheeseboroughs that you get for a little under $20 each. Instead they are carrying an aluminum cheeseborough that costs$60. The reason is that the iron ones are not rated for overhead use.

Especially curious what @egilson1 and @What Rigger? have to say

RonHebbard

#### BillConnerFASTC

##### Well-Known Member
I don't think I've ever seen an iron cheeseborough, only cast and milled aluminum. Any links?

RonHebbard

#### gafftaper

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I don't think I've ever seen an iron cheeseborough, only cast and milled aluminum. Any links?
Yeah I was thinking the same thing but decided to post exactly as I was told by the vendor. I haven't worked with a lot of cheeseburgers, and It's been about 8 years. But the one's I have worked with I don't remember being iron.

RonHebbard

#### Footer

##### Senior Team
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Ya, sure. Why not.

Most R&R shows that I come into contact with them are using the lightsource milled ones, but that has more to do with not crushing truss then anything else.

I guess the millions of scaffold towers that are held together with this things that people walk under all the time are bad now?

#### gafftaper

##### Senior Team
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I guess the millions of scaffold towers that are held together with this things that people walk under all the time are bad now?
That's what I was thinking...

Looking for a good argument against going with what we've been using for decades.

RonHebbard

#### BillConnerFASTC

##### Well-Known Member
I briefly looked for any "overhead" rating of any cheesborough and found nothing on line. Sure would like to see it.

RonHebbard

CB Mods
RonHebbard

#### BillConnerFASTC

##### Well-Known Member
It is steel - same as iron to some - and claims it "meets OSHA standards"(as well as CSA and ANSI):

Features
Heavy duty galvanized steel for maximum corrosion resistance
Dual 90 degree bolt on clamp has a range of 1.66 to 1.90 in.
Will work with both standard and arched MetalTech frames
Meets OSHA standards

I suspect there is a difference between this being used for cross bracing - its labeled purpose - versus supporting live loads directly - and also being a part of a system. Someone else can research this. You need to get a definition of
(And certainly this shouldn't deter anyone that uses grade 30 chain for overhead lifting. i.e.: trim chains.)

I do quickly find a "Global Truss Pro Swivel Clamp" at Full Compass for $23 that is rated for 1100 pounds. Same rating as the Light Sources aluminum at$38.95. Doughty is 1653 pounds and \$93 at Sapsis. I'd use Light Sources or Doughty, but then I use their rated c-clamps, and not ETC's unrated iron ones.

Load ratings are anything but simple.

#### SteveB

##### Well-Known Member
Ya, sure. Why not.

I guess the millions of scaffold towers that are held together with this things that people walk under all the time are bad now?
Well, there's always bamboo.

RonHebbard

#### gafftapegreenia

##### CBMod
CB Mods
Rosebrand burgers are apparently made to specific specifications.

RonHebbard

#### danTt

##### Well-Known Member
There's no rating for vertical suspension using cheeseboroughs, but that's true with the fancy new aluminum ones as well. Steel boroughs hold much better in my experience. Sounds like a dealer with a good vendor deal or conflicting information.

#### DavidJones

##### Well-Known Member
The Lightsource ones are so much nicer for most things though, Still, double the cost of the industrial scaff clamps, but way more convenient IMO.

(Never mind)

RonHebbard

#### RonHebbard

##### Well-Known Member
(Never mind)
Never what??
(Is that akin to I thought I wanted to post but thought better of it and now I can't delete it??) [Use EDIT to insert a serious profanity and watch how fast it'll be deleted. I could PM you one that's got me deleted two out of two times.]
Yoodleoo!
Ron Hebbard

#### danTt

##### Well-Known Member
The Lightsource ones are so much nicer for most things though, Still, double the cost of the industrial scaff clamps, but way more convenient IMO.
I agree, but the threads also get damaged much easier in my experience (especially once people get out the wrench...) It's far more common to see a crossthreaded/unusable lightsource clamp than a traditional scaffold clamp.

RonHebbard

#### DavidJones

##### Well-Known Member
I agree, but the threads also get damaged much easier in my experience (especially once people get out the wrench...) It's far more common to see a crossthreaded/unusable lightsource clamp than a traditional scaffold clamp.
You can buy all the parts separately though, so repairs are pretty cheap.