Simply draw round your old brick, cut and shape along the lines with simple wood working tools, the material is easier to cut than wood.
Fire Brick Replacement 160mm x 520mm 25mm thick DIY you cut to size
Fire Brick Replacement 300mm x 300mm x 20mm thick DIY you cut to size
1 x Vermiculite Fire Brick Replacement 200mm x 250mm x 25mm DIY cut to size x 1
2 x Vermiculite Fire Brick Replacement 200mm x 250mm x 25mm DIY cut to size x 2
Fire Brick Replacement 400mm x 300mm x 20mm DIY you cut to size
Vermiculite Stove, Fire Brick Replacement 470mm x 120mm x 25mm
