Garage Door Rough In Size

The rough opening is equal to the size of the door but you need to figure back head and side room before choosing and installing the new garage door.

Garage door rough in size.

First column in the above chart is in imperial system width x height in feet and second column is in metric measurements garage door width x height in centimeters. For instance if you have a 16 door and are using river stones that are approximately 2 to 2 1 2 you will want the rough opening to be roughly pun intended 16 6. 99 of the residential garage doors that we run across are different than these widths. For residential homes 99 of doors are either exactly 7 or 8 tall.

If it s 9ft the opening must be 9ft 3 inches and so on. The size of the door will. The width of the rough opening should be 3 inches greater than the width of the garage door you are purchasing. Measure the head room the distance between the top.

9 and 10 feet high garage doors are less common. 1 2 or 1 in one direction of the other will won t typically cause you to have to shop for a non standard garage door size. Standard garage doors start at 7 tall and increase in increments of one foot. For instance if the width of the garage door is 8ft the rough opening should be 8ft 3 inches wide.

Some manufacturers offer width from 7 up to 18 with 1 increment. Next you will need to know your door height. Next measure the sideroom or space available on the left and right sides of the opening. You get the picture.

Step 1 measure the old door if you are replacing an existing door with one of the same size or the new door of choice if you are building a new garage.