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RE: Gyp. Board Screws

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The Standard Building Code(1997 Ed), Table 2506, "Shear Capacity for
Shear Walls of Lath and Plaster, Gypsum Sheathing Board, and Gypsum
Wallboard Wood-Framed Assemblies", Note 3 states:

	"Drywall screws may be substituted for the 5d, 6d (cooler) nails
listed above: 1-1/4" 	type S or W, #6 for 5d or 6d (cooler) nails."

I do not know of a similar provision in UBC or BOCA, but have always
give the above specification as an alternate for cooler nails when using
Gypsum sheathed shearwalls.  My practice is mostly east coast and
mid-west (SBC and BOCA), and so far I have never had a complaint from
any building official about the 1:1 substitution of screws for nails.

Charles F. Espenlaub, III, P.E.
Martin-Espenlaub Engineering

-----Original Message-----
From: rlewis(--nospam--at) [mailto:rlewis(--nospam--at)]
Sent: Monday, March 20, 2000 8:25 AM
To: seaint(--nospam--at)
Subject: Gyp. Board Screws

I am designing a one story wood framed motel type structure.  The room
partitions are about 12 feet on center.  I would like to use the gyp.
partition as a shear wall, since there will be relatively light loads
many walls.  Table 25-1 of the UBC has shear wall information using
nail".  Are there any shear wall values using drywall screws?



Richard Lewis, P.E.
Missionary TECH Team