Perfect in Narrowboats or Under the cooking base in a Pizza Oven Insulation board 40mm High Temperature calcium silicate Board To Cover 1mt2. These are offcuts of board approx 58cm x 24cm x 4cm You will receive 8 of these to cover an area of over 1mt square The boards are made of calcium silicate which is a lightweight non combustible material. Suitable for around wood burning stoves and can be tiled over if the correct adhesive is used Suitable for use in narrow boats Complies with BS8511:2010 The latest recommendation for the installation of fuel stoves in boats Full sized boards available on request Contact us for more details