It all varies on what the exterior finish detail is.
What is the rough opening for a 8x7 garage door.
Install the header on top of the trimmers and nail.
This will give you room to space the door frame off of the sub floor.
The standard size for double garage doors is 16 feet wide and 7 to 8 feet high.
At least two 2x4s on each side of the jambs but three would not hurt.
Make sure to allow for an uneven floor.
Most garage doors openings i trim out get done simply with aluminum cladding but this is for cost.
Words like rough opening are thrown around and i m not sure if we are speaking about the same thing.
Many home builders do not consider this a structural necessity but a style and price choice for the homeowner.
Cut the header from 2 x 12 lumber and to a length of the rough opening plus 6 inches.
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.
Otherwise its done with 1x stock pvc or sometimes 5 4 lodgepole pine trim.
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.
Next you will need to know your door height.
Nail or screw 2 x 6 jambs to the framing on the top first and then the sides of the rough opening.
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.
Ordering a garage door based on a rough opening size can leave you with a door that is too big.
Many homeowners have two cars and need garage space to shelter them both.
Getting the rough opening size right the first time will save you from frustration when installing your doors.
If opening will be perfectly level and plumb 1 2 to 3 4 smaller than door.
Standard garage doors in our area are 8 9 16 and 18 wide.
Just add 2 to the width of the actual door size.
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.
To make my.
Also many garage door installers want 2x4 s nailed on the flat to the inside edge of the opening for the tracks to be fastened to.
After installing the jambs your garage door opening should now be the same size as the garage door.
Framing rough opening sizes are really quite simple.
You should add 2 1 2 to the height of the actual door.
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.
In our business we refer to rough openings as the size of the opening before the finished lumber has been added to the jambs.