Is The *Face* Of Drywall As Just The Same Hardness - Drywall & Plaster - DIY Chatroom Home Improvement Forum

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Old 03-01-2012, 07:41 AM   #1
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Is the *Face* of Drywall as just the same hardness

I've always been under the presumption that 5/8 Firecode Sheetrock has a *harder* top edge surface then let's say 1/2 Mold. Well, this was based on the last time I hung a tonnage of sheetrock on a large remodel.

Interesting enough, as I need a thin sheetrock to finish off the edge, and the 3/8 I saw was just as *tough* on the surface to dents as the 5/8" I know.
I still need head down to the bldg. supply to get the 1/4" I need but I'd be curious to know if sheetrock these days are just as *hard* - irrelevant of thickness


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Old 03-02-2012, 04:59 PM   #2
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Hit the various thicknesses of board with a blunt object (not you fist, especially on the 5/8") and you'll see they are NOT all created "equal".....


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Old 03-02-2012, 11:54 PM   #3
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Impact Resistance (typical)

(ASTM E 695)
(Using 50 lb (22.7 kg) leather bag, one test per specimen. Impact point located at midpoint between studs. Impact
Resistance - Drop height at penetration through impacted membrane.)

Thickness Board Tested on 2x4 (nominal) wood studs
16" (400mm) o.c.
in. (mm)

1/2 (12.7) regular 12"

1/2 (12.7) type X 24"

5/8 (15.9) type X 30"


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Old 03-03-2012, 12:31 AM   #4
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I think he means hardness like sticking your fingernail in it.
All the same.
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