Home / Insulation / Floor Insulation Boards / Polystyrene Polystyrene Sort By Most popularWhat's newPrice low to highPrice high to lowName A to ZName Z to A 4 Products Sort Polystyrene Insulation 100mm 2400x1200mm Pack of 3 Sheets £87.43 £72.86 (ex. VAT) Add to Cart Polystyrene Insulation 25mm 1200x2400mm Pack of 12 Sheets £87.43 £72.86 (ex. VAT) Add to Cart Polystyrene Insulation 50mm 2400x1200mm Pack of 6 Sheets £87.43 £72.86 (ex. VAT) Add to Cart Polystyrene Insulation 75mm 2400x1200mm Pack of 4 Sheets £87.43 £72.86 (ex. VAT) Add to Cart