Width meaning your header should be 16 feet 9 inches long.
Rough opening for 12x8 garage door.
Verify the rough opening is square.
Maximum allowable deviation from square is normally 1 4.
The diagonal measurements should be the same.
Verify the rough opening is level and plumb.
After installing the jambs your garage door opening should now be the same size as the garage door.
The extra length for the header is to.
Width of garage door opening standard widths are 8 9 10 12 14 16 17 and 18 height of the garage door opening standard residential heights are 7 7 6 8 header the header is ideally a minimum 12 wide micro laminated beam that spans the width of the garage door opening.
Words like rough opening are thrown around and i m not sure if we are speaking about the same thing.
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.
Provide enough load bearing strength to cover the 16 foot opening span.
If it s 9ft the opening must be 9ft 3 inches and so on.
Verify the width and height of the door frame are each 1 2 smaller than the rough opening width height.
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.
That for a 16 foot wide garage door the header should be at minimum 9 inches longer than the door.
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.
Install the header on top of the trimmers and nail.
In our business we refer to rough openings as the size of the opening before the finished lumber has been added to the jambs.
It is important to note.
To make my.
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.
More rough opening tips.
Cut the header from 2 x 12 lumber and to a length of the rough opening plus 6 inches.
The easy installation versatility and easy operation make this door the standard of all commercial sheet doors.
Next you will need to know your door height.
Standard garage doors in our area are 8 9 16 and 18 wide.
Nail or screw 2 x 6 jambs to the framing on the top first and then the sides of the rough opening.
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.
This 12 x 8 model 2500 is the new standard for heavy duty commercial sheet doors featuring universal mount 4 deep 12 gauge galvanized steel guides for strength and durability.
Ordering a garage door based on a rough opening size can leave you with a door that is too big.
