In Australian commercial construction projects, "Gyprock" refers to a brand of plasterboard or drywall that is commonly used for interior walls and ceilings. Gyprock is a product of CSR Limited, an Australian company, and has become a generic term in the region for plasterboard, much like "Sheetrock" in the United States.

Gyprock boards are made of a gypsum core encased in a paper lining. They are used for creating smooth, paintable surfaces in interior spaces and are valued for their ease of installation, fire resistance, and soundproofing qualities. These boards come in various thicknesses and types, including standard, moisture-resistant, fire-rated, and soundproof varieties, to suit different construction needs and building codes.

One of the main advantages of Gyprock boards is their ease of installation. They can be cut to size and installed using screws or nails, and they can be joined together using special joint tape and joint compound to create a seamless finish. This makes them a popular choice for commercial construction projects where speed and efficiency are important factors.

Gyprock boards are also known for their fire resistance and sound insulation properties. They can help to slow the spread of fire and reduce the amount of smoke produced in the event of a fire, which is important in commercial buildings where large numbers of people may be present. They also provide good sound insulation, helping to reduce noise transmission between rooms and floors.

In addition to their practical benefits, Gyprock boards are also available in a range of finishes and textures, allowing architects and designers to create a variety of different looks and styles in commercial buildings. They can be used to create sleek, modern interiors or more traditional, classic looks, depending on the desired aesthetic.