Determining the size of the garage door is usually pretty straight forward. To measure the opening, you’ll need to measure the width and height of the garage door opening in feet and inches. Be sure to measure at the widest point to ensure the door fits properly. Standard garage door sizes typically range from 8 to 18 feet wide and 7 to 8 feet tall, but custom sizes are also available. It’s essential to choose the right size door to ensure that it functions properly and provides adequate clearance for vehicles and other equipment. A professional garage door installer can help you determine the right size for your specific needs. Luke at A1 Garage Doors did a great job of showing all the measurements to consider for a standard garage door in this video. If you have any questions regarding fitment contact your local garage door company. You should be able to find a reputable company that offers free estimates. Whether you have a single or double-car garage, ensuring your new overhead door fits perfectly is crucial. At Tier1 Garage Doors, our experienced staff can provide a free estimate and take precise measurements of your garage door opening. This attention to detail guarantees that your new garage door will be a perfect fit, enhancing both the security and aesthetics of your home. Standard Garage Door Sizes Single Car Garage Door Sizes: 8 x 7 feet 9 x 7 feet 10 x 7 feet 8 x 8 feet 9 x 8 feet 10 x 8 feet 12 x 7 feet 12 x 8 feet 14 x 7 feet 14 x 8 feet Double Car Garage Door Sizes: 16 x 7 feet 16 x 8 feet 18 x 7 feet 18 x 8 feet