The rough opening should be the same size as the door.
Rough opening for a 9x7 garage door.
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.
99 of the residential garage doors that we run across are different than these widths.
However if you are putting bricks thick river rock stones marble or anything else on both sides that is more than 1 thick you will want the rough opening the same.
If it s 9ft the opening must be 9ft 3 inches and so on.
Therefore making the width of the garage door rough opening the same size as the door would be fine if you are going to use a thin layer of stucco vinyl siding or 1 by lumber.
Frame the rough opening to a height that is 1 5 taller than the door that you have selected.
Frame the rough opening for the garage door to 3 inches wider than the garage door you have selected.
If you are installing a 9 wide door the opening will be 9 3 wide.
Cut four 2 x 4 trimmers to this length and nail two each to either side of the rough opening.
Width of rough opening the width of the rough opening should be 3 inches greater than the width of the garage door you are purchasing.
Take these measurements to your local installing dealer or retailer to purchase the clopay garage door that is right for you.
This would allow you to frame and wrap and apply the door seal around the outside of the door after it is installed with 2 x 4.
Standard garage doors in our area are 8 9 16 and 18 wide.
For instance if the width of the garage door is 8ft the rough opening should be 8ft 3 inches wide.
Measure the width and height 1 and 2 of your door opening in feet and inches to determine the garage door size you need.
If the door is 7 tall frame the opening 7 1 5.
Frame the rough opening to 3 inches wider than the garage door size you have selected.
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.
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.