C17

Approved only if these conditions are met: For weather-exposed door jambs and mullions; can only be used in non-structural applications subject to compliance with industry recommendations

C codes  indicate that the timber is recommended for use in that application provided the specification and timber used meets the minimum provision denoted by those codes.
C17 - For weather-exposed door jambs and mullions; can only be used in non-structural applications subject to compliance with industry recommendations.

Used in field: