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Siniat GTEC Plasterboard Aqua Board Tapered Edge 1200 x 850 x 12.5mm
Aqua Board is a water-resistant plasterboard for kitchens, bathrooms, and shower rooms. It is also suitable for humid environments such as swimming pools and spas. It can be painted or tiled straight on the surface. The Aqua Board is suitable for... -
Siniat GTEC Plasterboard Thermal PIR Tapered Edge 2400 x 1200 x 37.5mm
GTEC Thermal PIR Board offers high levels of thermal insulation, as it is made up of a GTEC Standard Board that has been bonded to a rigid polyisocyanurate (PIR) foam. The Board overs 30% better thermal performance than Thermal XP Board. Suitable for... -
Siniat GTEC Standard Plasterboard Square Edge 1800 x 900 x 12.5mm
Designed for partitions, linings and ceilings, this standard board is square edged and most suitable for undecorated applications or textured finishes. It is also suitable for gypsum plaster. Specifically for normal fire, structural and acoustic levels. -
Siniat GTEC Standard Plasterboard Square Edge 2400 x 900 x 12.5mm
Designed for partitions, linings and ceilings, this standard board is square edged and most suitable for undecorated applications or textured finishes. It is also suitable for gypsum plaster. Specifically for normal fire, structural and acoustic levels. -
Siniat GTEC Standard Plasterboard Square Edge 2700 x 1200 x 12.5mm
Designed for partitions, linings and ceilings, this standard board is square edged and most suitable for undecorated applications or textured finishes. It is also suitable for gypsum plaster. Specifically for normal fire, structural and acoustic levels. -
Siniat GTEC Standard Plasterboard Square Edge 3000 x 1200 x 12.5mm
Designed for partitions, linings and ceilings, this standard board is square edged and most suitable for undecorated applications or textured finishes. It is also suitable for gypsum plaster. Specifically for normal fire, structural and acoustic levels. -
Siniat GTEC Standard Plasterboard Tapered Edge 1800 x 900 x 12.5mm
GTEC Standard Board is a gypsum board for partitions, linings and ceilings where normal fire, structural and acoustic levels are specified. It is available with square or tapered edges in a variety of sizes. Tapered edge boards for taping and jointing to... -
Siniat GTEC Standard Plasterboard Tapered Edge 1800 x 900 x 15mm
Whether you're looking to install plasterboard for partitions, linings, or even ceilings, the GTEC Standard Board is a gypsum board designed for numerous applications. This particular board features a tapered edge for taping and jointing to achieve a... -
Siniat GTEC Standard Plasterboard Tapered Edge 1800 x 900 x 9.5mm
Whether you're looking to install plasterboard for partitions, linings, or ceilings, the GTEC Standard Board is a gypsum board designed for numerous applications. This particular board features a tapered edge for taping and jointing to achieve a flush... -
Siniat GTEC Standard Plasterboard Tapered Edge 2700 x 1200 x 12.5mm
GTEC Standard Board is a gypsum board for partitions, linings and ceilings where normal fire, structural and acoustic levels are specified. It is available with square or tapered edges in a variety of sizes. Tapered edge boards for taping and jointing to... -
Siniat GTEC Standard Plasterboard Tapered Edge 3000 x 1200 x 12.5mm
GTEC Standard Board is a gypsum board for partitions, linings and ceilings where normal fire, structural and acoustic levels are specified. It is available with square or tapered edges in a variety of sizes. Tapered edge boards for taping and jointing to... -
Siniat GTEC Thermal EPS Board Plasterboard Tapered Edge 2400 x 1200 x 40mm
The GTEC Thermal Board Wallboard is a GTEC Standard Board that has been laminated to expanded polystyrene. Its purpose is to offer a more improved insulation than standard plasterboard can offer, with some thermal resistance. The Thermal Boards are... -
Siniat GTEC Thermal EPS Board Plasterboard Tapered Edge 2400 x 1200 x 50mm
The GTEC Thermal Board Wallboard is a GTEC Standard Board that has been laminated to expanded polystyrene. Its purpose is to offer a more improved insulation than standard plasterboard can offer, with some thermal resistance. The Thermal Boards are... -
Siniat GTEC Thermal PIR Board Tapered Edge 2400 x 1200 x 50.5mm
GTEC Thermal PIR Board offers high levels of thermal insulation, as it is made up of a GTEC Standard Board that has been bonded to a rigid polyisocyanurate (PIR) foam. The Board overs 30% better thermal performance than Thermal XP Board. Suitable for... -
Siniat GTEC Thermal PIR Board Tapered Edge 2400 x 1200 x 62.5mm
GTEC Thermal PIR Board offers high levels of thermal insulation, as it is made up of a GTEC Standard Board that has been bonded to a rigid polyisocyanurate (PIR) foam. The Board overs 30% better thermal performance than Thermal XP Board. Suitable for... -
Siniat GTEC Thermal PIR Board Tapered Edge 2400 x 1200 x 72.5mm
GTEC Thermal PIR Board offers high levels of thermal insulation, as it is made up of a GTEC Standard Board that has been bonded to a rigid polyisocyanurate (PIR) foam. The Board overs 30% better thermal performance than Thermal XP Board. Suitable for... -
Siniat GTEC Thermal XP Board Plasterboard Tapered Edge 2400 x 1200 x 27mm
The GTEC Standard Board offers insulation that is 60% more effective than other standard types of plasterboard, as it is laminated to polystyrene. It is ideal for insulating both walls and in loft conversions. -
Siniat GTEC Thermal XP Board Plasterboard Tapered Edge 2400 x 1200 x 35mm
The GTEC Standard Board offers insulation that is 60% more effective than other standard types of plasterboard, as it is laminated to polystyrene. It is ideal for insulating both walls and in loft conversions. -
Siniat GTEC Thermal XP Board Plasterboard Tapered Edge 2400 x 1200 x 55mm
The GTEC Standard Board offers insulation that is 60% more effective than other standard types of plasterboard, as it is laminated to polystyrene. It is ideal for insulating both walls and in loft conversions. -
Siniat GTEC Vapour Board Plasterboard Square Edge 1800 x 900 x 12.5mm
GTEC Standard Board with an additional laminated vapour control layer. The GTEC vapour board has the same physical property as the standard board but has a silver metallised polyester film back liner which enhances the vapour resistance of the product... -
Siniat GTEC Vapour Board Plasterboard Tapered Edge 2400 x 1200 x 12.5mm
GTEC Standard Board with an additional laminated vapour control layer. The GTEC vapour board has the same physical property as the standard board but has a silver metallised polyester film back liner which enhances the vapour resistance of the product... -
Siniat GTEC Fire Board Plasterboard Square Edge 2400 x 1200 x 12.5mm
GTEC Moisture Board is a plasterboard with moisture-resistant additives in the core and liner to provide protection in humid areas such as kitchens, bathrooms, and utility rooms.
Plasterboard
Plasterboard, often called drywall, is made from two outer layers bonded around a core of gypsum. It is a popular choice for construction because it is lightweight, easy to handle, and cost-effective.
Uses for Plasterboard
Modern plasterboards can be used in many projects, including:
- To control moisture – Ideal for areas exposed to steam or humidity, such as bathrooms and kitchens. Moisture-resistant plasterboard is specially designed to repel water, preventing it from being absorbed.
- Thermal heating in buildings – Useful for solid-wall buildings with less insulation than cavity walls, helping improve thermal performance.
- Restricting sound – Soundproof plasterboard has a higher density and can be part of a larger soundproofing system, reducing noise transfer through walls and ceilings.
- Fire resistance – Fire-resistant plasterboard contains special fillers and fibres that help slow the spread of fire.
- Acoustic soundproofing – Acoustic plasterboard is designed for ceilings and wall linings, offering higher sound insulation by blocking and absorbing soundwaves.
Strength and Durability
Plasterboard provides a smooth, high-quality finish for walls and ceilings. It is also suitable for use in lift shafts, stairwells, corridors, and auditoria, where durability is important.
Decorative Options
Our range also includes coving – a decorative moulding that hides the joint between walls and ceilings. Coving adds a clean, stylish finish and can enhance the character of any room.
For more information or expert advice on choosing the right plasterboard, speak to your friendly local Howarth branch.
Frequently Asked Questions
How to guides

How to use plasterboard on a ceiling or wall
This guide will help any DIYer to be able to complete a plastering job efficiently!

How to fix a hole in plasterboard
A guide on how to fix a hole in your plasterboard and what tools you will need for your project!