Plastic Sheetw from Professional Plastics. Cut to size Sheets of plastic - Local plastic sheeting supplier with locations in Los Angeles, NY, Houston, Dallas, Phoenix, Seattle, Denver, Cleveland, Atlanta, Singapore, Taiwan & more. A wide variety of wholesale polycarbonate options are available to you, There are 176,098 wholesale polycarbonate suppliers, mainly located in Asia. The top supplying countries or regions are United States, China, and Taiwan, China, which supply 1%, 96%, and 1% of wholesale polycarbonate respectively. Polycarbonate sheets have been our top choice for greenhouse glazing for quite some time. Compared to other greenhouse glazing materials you will get a much better insulation plus the polycarbonate sheets will last much longer than most other materials. Polycarbonate has many desirable features making it a popular choice for greenhouse glazing. Sheet, Rod, Tube - Cut to Size While You Wait! Welcome to Plastic Depot, formerly South Bay Plastics, your complete plastic supply store. Check us out for custom acrylic fabrication, polyester and epoxy resins, mold making supplies, and boat windows. Technical advice is part of our service at no extra charge. At American Plastic Lumber, we take pride in offering high quality recycled plastic lumber for a multitude of applications and with competitive pricing. Whether your project is large or small, we have the resources to provide you with the best plastic lumber products available and outstanding customer service.Poly Sheeting (often refered to as "tarps") is commonly used in construction and agricultural applications, but it is always showing up in new projects as it has almost infinite uses for dust and overspray protection.