Auto Repair Invoice Forms are printed on NCR carbonless paper. They can be constructed as a booklet with wrap around cover or as individual invoices glued at the edge. 8.5" x 11" and 5.5" x 8.5" are two of the most common sizes. There are many other options to customize an automotive repair invoice. Add a logo, your company name and more. Some forms are designed specifically for a state like those for California, Florida and Connecticut. Auto shop and centers love our forms because they are easy to use.