Inform your customers where they can park with this Custom Logo Customer Parking Only Aluminum Sign. Sign dimension is 18 x 12" and made of .080 heavy duty aluminum. Upload your business logo for a custom parking sign. For best results, vector (line art) files are the best which include .ai & .eps files. Other accepted files are TIFF, JPEG, PNG & BMP and must be at least 300 dpi. Add lamination for a longer lasting sign.