Insulated plasterboard sizes

Help & Advice > Product Guides > Loft Insulation

You’ve decided to improve your insulation with insulated plasterboard.

The question is:

What is the standard size of plasterboard? And is it right for your project?

To help you out, at Roofing Superstore we put together an in-depth guide to insulated plasterboard sizes available from leading manufacturers, including Celotext, Gyproc and Kingspan.

Read on.

What is insulated plasterboard?

Insulated plasterboard, also known as insulated drywall or insulated wallboard, is known as a separate product for its unique benefits that don’t come with traditional plasterboard solutions, including better energy efficiency, thermal performance and sound insulation

What’s more:

Insulated plasterboard simplifies the construction process compared to using separate insulation and plasterboard materials.

And that’s not all:

Insulated plasterboard also provides an efficient way to add insulation to walls without significantly increasing the wall thickness. This can be particularly valuable in situations where space is limited, as it minimises the impact on room dimensions while still improving thermal performance.

The product typically consists of plasterboard, covered with a layer of insulation attached to it. As such, there’s no need to spend time and extra costs on two separate products when installing them in the property.

What can insulated plasterboard be used for?

Typically, insulated plasterboard can be used for ceilings, partition walls and internal walls. Apart from the obvious benefits we’ve already discussed, the popularity of insulated plasterboard also comes from the fact there can be a short time between installation and decoration.

Insulated plasterboard can also be used for:

Commercial projects
Domestic projects
New builds
Refurbishments
Self builds

You can also upgrade cavity wall insulation with insulated plasterboard that adheres to the masonry inner leaf or can be mechanically fixed to timber battens.

Check out what insulated plasterboard sizes are available to ensure you’re set up with the right product for your project!

Celotex sizes

Each piece of Celotex insulation undergoes thorough inspection and precise measurement to guarantee that it consistently meets the highest quality standards, supported by BBA certification

Plasterboard	Length	Width	Thickness (insulation)	Thickness (plasterboard)
PL4025	2400mm	1200mm	25mm	12.5mm
PL4040	2400mm	1200mm	40mm (52.5 overall)	12.5mm
PL4050	2400mm	1200mm	62.5mm	12.5mm
PL4060	2400mm	1200mm	60mm	12.5mm

Gyproc sizes

Gyproc boards are manufactured from a combination of gypsum plasterboard which is bonded to extruded polystyrene foam insulation layer.

Plasterboard	Length	Width	Thickness
Gyproc Thermaline Basic Tapered Edge Wallboard	2400mm	1200mm	22mm
Gyproc Thermaline Basic Tapered Edge Wallboard	2400mm	1200mm	30mm
Gyproc Thermaline Basic Tapered Edge Wallboard	2400mm	1200mm	40mm
Gyproc Thermaline Plus Tapered Edge Wallboard	2400mm	1200mm	27mm
Gyproc Thermaline Plus Tapered Edge Wallboard	2400mm	1200mm	35mm
Gyproc Thermaline Plus Tapered Edge Wallboard	2400mm	1200mm	40mm
Gyproc Thermaline Plus Tapered Edge Wallboard	2400mm	1200mm	48mm
Gyproc Thermaline Super Tapered Edge Wallboard	2400mm	1200mm	50mm
Gyproc Thermaline Super Tapered Edge Wallboard	2400mm	1200mm	60mm
Gyproc Thermaline Super Tapered Edge Wallboard (Pallet of 10)	2400mm	1200mm	90mm
Gyproc Thermaline Super Tapered Edge Wallboard (Pallet of 13)	2400mm	1200mm	70mm

Kingspan sizes

Kingspan’s insulated plasterboard offers superior performance, lower lambda interior wall insulation which is suitable for adhesive bonded/plaster dab or mechanically fixed dry-lining.

Plasterboard	Length	Width	Thickness
Insulated Plasterboard by Kingspan K118 Kooltherm	2400mm	1200mm	32.5mm
Insulated Plasterboard by Kingspan K118 Kooltherm	2400mm	1200mm	37.5mm