SheetRock

[TDHofstetter]

Sorry 'bout that - I thought they were already down-to-sized...

[sawduster]

Yep, that is some strange looking stuff. My sheet rock work days were back in the early 1970s, and I don't recall ever seeing anything like that.

[rrich]

Now I understand...

The snipe is to allow mud to settle into the snipe/groove/snipe so that tape can be easily applied and covered. The groove allows a wide trowel to smooth the mud and ride on the the two mating sheets. This in theory makes for less sanding.

[TDHofstetter]

Na, not the taper on the front surface, Rich - sheetrock always has those tapered edges. We're lookin' at the edges, where it's chamfered all the way back to the back surface. Normally, those edges are completely square so the sheets butt against each other regardless of orientation - these sheets won't butt against each other unless they're both oriented exactly the same direction.

Lemme getcha' a picture to clarify - wait one...

EDIT: Here, like this:

The edges of two normal sheets:


One normal sheet and one of these oddball chamfered sheet:


Two of these oddballs, back to back (other edge is chamfered the opposite way):

[sawduster]

And if I remember from the original post, these are a scudge over 48" wide so that when the bevels match up, they center on 48". I guess that that configuration might make it easier for one person to install a sheet on the ceiling, though I don't know that there is enough taper to facilitate even that. I still can't figure, other than that, what the benefit would be.

[fredbelknap]

Heck Timmer is 36 years ahead of us:)

[rrich]

Tim,
As we used to say in Maynard, "That's FOO BAR."

[dcarter636]

That would just make twitch all over.

I had my hands full being sure to measure notches, holes, and such on the correct side you gotta mind the correct edge, whatta PITA!

[TDHofstetter]

Just heard from the USG rep... she's going to have the vendor drop by & bring me replacements for all the remaining chamfered sheets & pick up the chamfered ones. They're pretty mystified about it, but they're makin' it good for me.

[Joe Lyddon]

Very GOOD!

I thought they would do that... once they knew about it... ;D ;D