Frequently Asked Questions

Below is a list of the most common questions asked by our customers. We’ve included brief answers and links to more detailed information to help you resolve your enquiry.

If you can’t find the answer you are looking for here, email us or call 1300 306 556 and we’ll give you all the assistance we can.​​​​​

Where can I buy Gyprock products?

Gyprock plasterboard, cornice and compounds are available across Australia through a network of Gyprock Trade outlets, affiliated distributors and retailers.

Search for your nearest outlet in our Locations directory

Does Gyprock provide installation services?

Gyprock provides a supply and fix service for residential builders only. In our Business Directory you can find your nearest plasterer, builder or repairer who uses Gyprock products.

Where can I see pricing for Gyprock products?

You need to contact a Gyprock Trade Centre or Gyprock retailer direct via our Locations Directory. Alternatively, contact Gyprock sales on 13 17 44.

What do I use in a bathroom?

We recommend Gyprock Aquachek in areas including bathrooms, kitchen, laundries, garages and ceiling application such as walkways and verandas. For installation detail, download the Residential Installation Guide.

What do I use for a ceiling?

We recommend Gyprock Supaceil for all internal ceilings. Supaceil’s special formulation prevents ceiling sag and can be installed at up to 600mm centres.

What lining do I use in my kitchen?

Technically, the kitchen is not a wet area and is not required to be fire rated so you can use Gyprock Standard Plasterboard. However, you can use Gyprock Aquachek for added moisture resistance.

How do I soundproof my home?

Gyprock Soundchek Systems can help prevent noise transfer in homes. See Noise Solutions for more information.

When is back-blocking required on ceiling?

Back-blocking is required when three or more recessed joints are present in a ceiling and when butt joints are located between framing supports or when using Gyprock Easy tape during the jointing process. Gyprock recommends Gyprock Back Blocking Cement.

What is ‘white set’ plaster?

It is Hardwall plaster that is mixed into a compound and applied to a wall with a trowel.

What joining tape do you recommend, Paper Tape or Easy Tape?

Easy Tape is easy to use as it sticks to the wall and we recommend it for minor repairs. Paper Tape is much stronger than Easy Tape and can be used in all applications. See Jointing Tapes for product information.

Can I use Gyprock that has been wet?

In general, we recommend that Gyprock plasterboard be replaced after being wet. When the paper is wet, or if the paper lining is subject to any deterioration, board strength and the holding capacity of fixings may be reduced.

When fully dry, plasterboard can maintain its properties and strength is not permanently affected. The board must be allowed to dry and be inspected for signs of deterioration or warping. If it can be shown that the strength is not affected, it is expected that the board can be retained.

If you are not satisfied that the board strength is unaffected, our recommendation is for wet plasterboard to be replaced.

Can I use plasterboard to surround a fireplace?

Plasterboard is not suitable near an open fire where the temperature exceeds 45º C. When installing a combustion heater refer to manufacturers specifications.

Can I use plasterboard directly behind a cooktop splashback panel?

No. The Building Code of Australia (BCA) deems plasterboard as not suitable for this application.

To meet the requirements of the BCA, plasterboard products are not suitable for use near gas stoves unless protected by tiles.

Should I fix the plasterboard sheets vertically or horizontally?

For residential installation, horizontal application of plasterboard on walls is recommended because it:

  • Reduces joints by up to 25%
  • Provides a stronger wall
  • Reduces the possibility of unacceptable light reflections around joints
  • Joints are at a more convenient height for finishing
  • Plasterboard fixed to steel framing in light commercial applications is typically sheeted vertically.

How far do I drive the screws into plasterboard?

Drive the screw head into the plasterboard so that it embeds slightly below the surface, but without punching through the paper face.

Should I use steel or timber studs?

There is no difference except you can nail or screw into timber and you must screw into steel.

How do I fix a mouldy wall or ceiling?

First, you must locate and remove the source of moisture causing the mould. Then use a household bleach to remove the mould and wipe off with a wet sponge. Allow to dry and repaint if needed.

Does Gyprock supply X-Ray blocking plasterboard?

This is referred to as Radiant Board and can be purchased via Radiation Services on 02 9838 9591.

How do I fix cornice to masonry?

Use Gyprock Cornice Cement to the ceiling lining of plasterboard and Masonry adhesive to the masonry wall.

How do you sand Base Coat when it’s been set badly?

Base Coat is difficult to sand, so a neat installation is always preferable. Where sanding is required, use 150 grit sand paper ensuring not to over sand the face of the wall lining.

What is the definition of protected from the weather?

When the ceiling lining cannot be affected by the elements - direct sun and rain. Our moisture resistant plasterboards can be used outside when fully protected from the weather, for example, in eaves.

Can stud adhesive be used in wet areas?

No, when installing plasterboard in a wet areas including bathrooms, showers, laundries and toilets, the sheets must be fastened with nails or screws only and the spacings of the fasteners will be dependent on the weight and extent of wall tiling. Refer to the Gyprock Residential Installation Guide for more information.

Can standard plasterboard be used in wet areas?

No. The added moisture content of the area and Building Code of Australia (BCA) dictates moisture resistant wall lining must be used.

Can stud adhesive be used in fire rated applications?

No. Due to the acrylic nature of the adhesive, the elevated temperature would cause failure in the stud adhesive therefore total system failure could result. Refer to the Gyprock Residential Installation Guide for more information.

Can Gyprock systems be substituted with competitor product?

All wall and ceiling systems developed by CSR have been tested or assessed using Gyprock plasterboards, so when Gyprock plasterboards or the required components are substituted with material supplied by another manufacturer we cannot support the system performance or warrant the materials.

Are the CSR wall and ceiling systems in the Red Book supported by certification?

All the claims regarding the fire resistance and acoustic performance within the Red Book are supported with either tests, assessments, or opinions as required by the Building Code of Australia. Contact DesignLINK on 1800 621 117 for additional information.

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