The minimum thickness of a fire-resistant wall in a residential building is

date：2026-04-30 14:35:29 author：admin browse： time View comments Add Collection

The minimum thickness of a fire-resistant wall in a residential building is

The minimum thickness of a fire-resistant wall in a residential building is:

A. 100 mm

B. 120 mm

C. 150 mm

D. 180 mm

Answer: B

Explanation: Fire-resistant walls require 120mm minimum thickness.