Perforating Vinyl I'm guessing Hal is talking about those panels which have speaker perforations in the middle of an otherwise plain piece, such as on Mazda MX5 / Miata seats with the in-built headrest speakers, or on some door panels. In those circumstances I wouldn't think you could have a roll perforated to your needs because you'd never know how much plain vinyl you'll need surrounding the perforations for that particular job. Unless you do a lot of one particular car and can have the perforated areas spaced to suit.