Amazon.com: ABS Black Plastic Sheet 48" X 96" X 0.118" (1/8") 4x8 ft, Black Haircell, for Automotive, Hobby, DIY, Industrial. Easy to Cut, Bend, Mold. : Industrial & Scientific
Corrugated Plastic Sheets 4 x 8, Sheets 4'x 8'
1/2 in. x 4 ft. x 8 ft. White PVC Sheet Panel 190360 - The Home Depot