Abstract: A method of making a composite sheet material, comprising: applying (102) an opaque layer of opaque material (12), for example aluminium, to a first side of a layer of fibrous material (10); applying (104) a layer of transparent or translucent plastics material (14) on a side of the opaque material opposite the layer of fibrous material. The side of the layer of opaque material is viewable through the layer of plastics material. The opaque layer is a different colour to the colour of the fibrous material. The opaque layer and the layer of plastics material cooperate to provide the composite sheet material with a coloured appearance. The layer of opaque material is coated on the first side of the fibrous layer so that contours of the side of the opaque material correspond to the shape of the first side of the fibrous material layer.