1.1 This specification covers the minimum requirements for interior lathing and furring for full thick gypsum plastering. Other materials may be used provided that their physical characteristics and durability under conditions of usage are at least equal in performance to those described.

Note 1-To secure desirable results, this specification should be coordinated with the provisions of Specification C 842.

1.2 The values stated in inch-pound units are to be regarded as the standard. The metric values shown in parentheses are provided for information purposes only.

1.3 For specific degree of fire resistance and the specific degree of sound control requirements see Annex A1.2 and A1.3.

1.4 General information regarding matters of a contractual nature concerning lathing and furring is contained in Annex A1. Technical information relating to lathing and furring materials is provided in Annex A2. Erection data for door frames installed in lath and plaster hollow partitions using prefabricated steel studs or channel studs is provided in Annex A3.