PLASKOLITE 0.157-in T x 30-in W x 36-in L White Corrugated Plastic Sheet in the Polycarbonate & Acrylic Sheets department at Lowes.com
4mm Corrugated plastic sheets : 12 x 18 :10 Pack 100% Virgin White
Amazon.com : Corrugated Plastic Sheet for Indoor and Outdoor Use - 3/16 Inch Thick Poster Board, 24x36 Inches - Pack of 2 Black Plastic Board Sheets - Waterproof Coroplast Sheets and Lightweight
Black Plasticore 4mm 48 x 96 sheet 10 pack-BPC48964mm-10
Corrugated Polypropylene | Fluted PP Sheet
Matra Plast Hi-Core Corrugated Sheet, Clear, 4 mm, 48" x 96" | GRAPHIC SOLUTIONS GROUP
Transparent Color Clear Polycarbonate Price Roof Plastic Corrugated Sheet - China Corrugated Plastic Roofing Sheets, Polycarbonate Roof Sheet | Made-in-China.com
Coroplast Plastic cardboard 0.157-in T x 24-in W x 36-in L Black Corrugated Plastic Sheet in the Polycarbonate & Acrylic Sheets department at Lowes.com