The British Gypsum Gyproc Thermaline Plus Plasterboard is a high-quality, versatile building material designed to offer enhanced thermal insulation. Measuring 2400mm x 1200mm x 27mm, this product features an extruded polystyrene core sandwiched between two layers of high-performance tapered edge gypsum plasterboard. Its ideal for creating energy-efficient internal walls and ceilings in both new builds and refurbishment projects.