Benefits of GRG moulding over curved plasterboard
Posted on 1st July 2020
GRG moulding is a great way to manufacture complex shapes in a relatively fast and cost-effective manner. Forming in a mould enables both flexibility of design and accuracy in manufacturing. Both these elements contribute to an enhanced end product and the all-important visual appeal of great architecture well executed, something it is sometimes harder to achieve in un-moulded materials. Plasterboard for example, is now a popular method of covering internal walls, building framework, pipes and wires. However, this material has limits when it comes to aesthetic interior décor, so it is worth remembering the following points:
- Pre-cut, or so-called flexible plasterboard can’t achieve forms that curve in two directions – some examples: Domes, coves that radii, conical forms or any other form that has a curve in 2 directions. GRG mouldings can achieve two-directional curves with ease, giving architects the freedom to achieve more appealing and dramatic results.
- Although curved plasterboard can technically achieve a radius in one direction, for example in a curved wall, it will be compromised on curve quality by way of lots of small flat facets that will need considerable hand filling and sanding to improve. Even with this work it will still not be to the same quality finish as a section formed in GRG from zinc run or CNC moulds.
- Pre-cut plasterboard only works successfully on straight runs and with a straight profile, for example a stepped ceiling bulkhead, however these are only as good as the metal framework and beading and will have more visible joints due to no filling rebates. In general, this method will never meet the quality of a premade GRG section.
To see examples of GRG moulded column cases, ceiling bulkheads and wall panels please visit our Services page. Alternatively, we are available on phone or email to answer any questions, so please feel free to contact us.

GRG moulded ceiling with smooth curves and radii.
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