Corrugated Plastic Sheets not only have these wonderful qualities but also are super easy to cut. With the right kind of tools, you can quickly cut these sheets using the following Corrugated Plastic sheets comprise of three layers- two flat plastic sheets with a wave-like ribbed center layer. The two flat plastic sheets are generally referred to as twinwall plastic. The Corrugated Plastic sheets may also be like sheets of plastic that have a wave-like structure that might have chopped glass fiber reinforced in it