A-A-2304
November 9, 1984
COMMERCIAL ITEM DESCRIPTION
WALLBOARD, GYPSUM
The General Services Administration has authorized the use commercial item
description in preference Federal Specification SS-L-30, Type III, Grades R and
X, Class 1, Form a, Styles 1 and 3.
This description covers gypsum wallboard that is designed to be used for walls, ceilings, or partitions and affords a surface suitable to receive decoration. The wallboard shall be a available in the following types, styles and sizes, as specified:
Type R – Regular core
Type X – Fire retardant core
Style 1 – Square edge
Style 2 – Tapered or recessed edge
Size a – 3/8-inch thick
Size b – 1/2-inch thick
Size c – 5/8-inch thick
Salient characteristics.
Material. Wallboard shall consist of an incombustible core, essentially gypsum,
surfaced with paper firmly bonded to the core.
Type X. Designates gypsum wallboard complying with ASTM C36 that provides at
least one hour fire-retardant ratings for boards 5/8 inch thick or 3/4 hour
fire-retardant rating for boards 1/2 inch thick, applied to a partition in
single layer nail application on each face of loadbearing wood framing members,
when tested in accordance with the requirements of ASTM Methods E119.
Flame Spread Rating. When tested in accordance with ASTM E84 the wallboard
shall have a maximum flame spread rating of 25.
Dimensions. The wallboards shall be 4 feet wide and 4 to 16 feet long, as
specified. These are nominal dimensions.
Prohibitions. The wallboards shall contain no asbestos.
Finish. The surfaces shall be true and free from imperfections that would
render the wallboard unfit for use with or without decorations. The edges and
ends shall be straight. The corners shall be square.
Conformance. Wallboards shall meet or exceed the requirements of ASTM C36.
The issue in effect of the date of the solicitation shall
be used to determine compliance with this requirement.
Regulatory requirements. The offeror/contractor is encouraged to use recovered
materials in accordance with Public Law 94-580 to the maximum extent
practicable.
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