Can these be cut? If so what would you cut them with?

Thanks for reaching out. Yes, you can absolutely cut and trim these. The easiest way to cut your panels is with a heavy duty scissor. The bigger the opening of the scissor, the easier it is to cut. You can also use a utility knife accompanied by a ruler. Make sure you mark where you want to cut before cutting. To view the installation instructions, you can visit: http://pdf.lowes.com/installationguides/889274829469_install.pdf