Celotex Floor Insulation

Shop Celotex floor insulation at trade prices: Celotex GA4000, XR4000 and TB4000 PIR boards, now sold as Sopratherm, for solid and suspended floors. Prices are ex VAT.

GA4000 covers mid-range thicknesses, XR4000 is the thicker 120mm and 150mm board, and TB4000 is the thin 20–40mm board for tighter floor build-ups and detailing. Check a floor U-value with the PIR U-value calculator and quantities with the insulation calculator, or read what thickness of PIR you need.

See also all Celotex insulation boards, Celotex wall insulation, Celotex roof insulation and floor insulation boards from every brand. Celotex orders have a £400 ex VAT minimum. Delivery is free in England, and £40 + VAT to mainland Wales and mainland Scotland, with a £400 ex VAT minimum. We do not deliver to the Isle of Wight. Celotex is delivered separately from other products.