The ANSI/EIA/TIA Building Telecom Wiring Standards, Section 569-A Sub-Section7.2.4.1 states:

"A minimum of two walls should be covered with rigidly fixed 3/4" plywood....... either fire-rated or covered with two coats of fire retardant paint"

Please note that the EIA/TIA spec is NOT a code. It IS accepted by most architects, builders and major corporations as the gospel for Telecom Wiring Standards. Note that it says SHOULD and not SHALL.

Also please note that the version I am quoting from is NOT the most recent one. I do believe however, that if anything the spec has gotten more and not less strict.

As Hal said - GO TO THE AHJ (Authority having Jurisdiction) and get the definitive answer from them.

Sam


"Where are we going and why are we in this hand basket?"