Plastic brick, cmu, and metal siding sheets

[Russ Bellinis]

I'm not sure it is made in large sheets. I suspect that the manufacturers that offer the various "novelty sidings" in plastic probably buy large sheets of plain styrene and emboss it themselves or else buy plastic pellets to make their product in house. If you have a local plastics dealer where you can get the large sheets of plain styrene, you might ask them if other types of material are available to them.