Skip to main content

Appraisal number: 559 (2020)

Date issued: 23 Jun 2020

KOROK® FS and NCS Systems


The KOROK® FS and NCS Systems incorporate KOROK® panels that are used to construct non-loadbearing standard, fire and acoustically rated walls and partitions with in the building envelope.

KOROK® panels are available in two panel profiles (KOROK® Gen 1 and KOROK® Gen 2 panels) and are made from lightweight aerated concrete encased in profiled galvanised steel sheet steel formwork.


KOROK® FS and NCS Systems have been appraised for use as non-loadbearing standard, fire and/or acoustically rated internally located walls and partitions for all buildings of all importance levels as defined by AS/NZS 1170.

The KOROK® panels may be installed with either a vertical or horizontal orientation. The maximum span for the panels between structural supports is 8 m. The overall height or length of a KOROK® FS and NCS Systems wall will be determined by the structural support. When used as part of a fire rated system, the maximum unsupported span of the KOROK® panels is 6 m (vertical orientation) and 5 m (horizontal orientation). Greater spans are subject to specific engineering design and/or fire engineering assessment and are outside the scope of this Appraisal.

Technical literature

KOROK® Technical & Installation Manual

Consenting instructions

Always refer to the Appraisal in full and the technical literature.

Appraisal holder

KOROK Building Systems NZ Ltd
Phone: 07 849 7062

Marketer details