GIB

Winstone Wallboards Ltd is New Zealand’s largest manufacturer and marketer of gypsum plasterboard, drywall systems, associated products and services. The company has been operating since 1927 and manufactures plasterboard systems under the GIB® brand name. Winstone Wallboards Ltd, who have facilities in Auckland, Wellington and Christchurch, is part of the Building Products Division of Fletcher Building – a New Zealand based international company.