If you need to look up information about your garage door or find the manufacturer, there are a few ways to do this. First, check the sticker. Manufacturers typically place stickers on the doors, often in more than one place with all the pertinent information like serial and model numbers about that particular door. The stickers typically have the company name and logo on it. The stickers can be small or large. If you don't see a sticker check the end of each panel it is most likely hidden by the track.