These requirements cover the design and construction of single swing Wood Core Flush Doors, which have shown by fire tests to possess sufficient fire-retardant properties to warrant a 20 min fire protection rating when tested in accordance with the Standard Method for Fire Tests of Door Assemblies, CAN/ULC-S104.
ULC 113
$75.00
Standard Specification for Wood Core Doors Meeting the Performance Required by CAN/ULC-S104 for Twenty Minute Fire Rated Closure Assemblies (CAN/ULC S113-07)