Measure the head room the distance between the top.
Garage door sizes rough opening.
Next measure the sideroom or space available on the left and right sides of the opening.
The height of the rough opening would be the height of the garage door plus the thickness of whatever you are putting underneath the header in addition to the thickness of the mortar etc.
Leading garage door manufacturers typically sell doors in widths ranging from 8 feet to 20 feet.
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.
To finish the opening.
For instance if the width of the garage door is 8ft the rough opening should be 8ft 3 inches wide.
If it s 9ft the opening must be 9ft 3 inches and so on.
If the door is 7.
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.
The size of the door will.
This post is intended for purposes of clarifying how garage door sizes work and opening preparation.
Frame the rough opening to 3 inches wider than the garage door size you have selected.
Most vertical track systems.
Frame the rough opening to a height that is 1 5 taller than the door that you have selected.
This is for a normal home with a normal car truck suv or van parked inside.
For example in areas where golf cart transportation is popular garage doors are usually available to suit these small vehicles.
Now all you need to know is how to properly frame your door rough opening.
Framing rough opening sizes are really quite simple.
Let s get started with your framing 1.
If you are installing a 9.
Some manufacturers offer width from 7 up to 18 with 1 increment.
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.
You should add 2 1 2 to the height of the actual door.
The width of the rough opening should be 3 inches greater than the width of the garage door you are purchasing.
This will give you room to space the door frame off of the sub floor.
Well normal garage doors measure 8 x 7 feet 9 x 7 feet and 10 x 7 feet all around.
99 of the residential garage doors that we run across are different than these widths.
You should reconsider the specifications for your garage door if you have multiple vehicles or a large vehicle to park inside.
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.
Begin by using a tape measure to determine the width and height of the door opening in inches.
You might be surprised at the range of standard sizes that exist today for garage doors.
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.
You get the picture.
Just add 2 to the width of the actual door size.