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.
1 x Vermiculite Fire Brick Replacement 200mm x 250mm x 25mm DIY cut to size x 1
Vermiculite Fire Brick Replacement 300mm x 200mm x25mm thick DIY you cut to size
Vermiculite Stove, Fire Brick Replacement 470mm x 120mm x 25mm
Fire Brick Replacement 360mm x 260mm x 25mm DIY you cut to size Log Burner Brick
Fire Brick Replacement 400mm x 300mm x 20mm DIY you cut to size
Fire Brick Replacement 300mm x 300mm x 20mm thick DIY you cut to size