The Carter Holt Harvey Woodproducts house bracing system uses structural plywood of various types to provide sheet bracing for walls and sub-floor foundations in both internal and external applications. The purpose of the system is to provide bracing resistance for light timber frame buildings under wind and earthquake loading, to meet the requirements of the New Zealand Building Code Section B1 Structure, and NZS 3604:1999 "Timber Framed Buildings". The Carter Holt Harvey Woodproducts house bracing system uses structural plywood of various types to provide sheet bracing for walls and sub-floor foundations in both internal and external applications. The purpose of the system is to provide bracing resistance for light timber frame buildings under wind and earthquake loading, to meet the requirements of the New Zealand Building Code Section B1 Structure, and NZS 3604:1999 "Timber Framed Buildings".