Cut four 2 x 4 trimmers to this length and nail two each to either side of the rough opening.
Rough opening for 16 garage door.
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.
This will give you room to space the door frame off of the sub floor.
When constructing a new garage the opening for a 16 7 garage door the opening should measure 16 7.
You should add 2 1 2 to the height of the actual door.
Just add 2 to the width of the actual door size.
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.
Words like rough opening are thrown around and i m not sure if we are speaking about the same thing.
In our business we refer to rough openings as the size of the opening before the finished lumber has been added to the jambs.
These trimmers should be.
Ordering a garage door based on a rough opening size can leave you with a door that is too big.
Measure the distance from the bottom plate of the wall to a point that is 1 1 2 inches higher that the garage door height.
Many home builders do not consider this a structural necessity but a style and price choice for the homeowner.
That for a 16 foot wide garage door the header should be at minimum 9 inches longer than the door.
Standard garage doors in our area are 8 9 16 and 18 wide.
Many homeowners have two cars and need garage space to shelter them both.
Leave a headroom of 14 or 12 minimum.
Many 16 x 7 garage doors will be designed with a pair of single 8 foot garage door bays separated by a central post or column.
Next you will need to know your door height.
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.
It is important to note.
The standard size for double garage doors is 16 feet wide and 7 to 8 feet high.
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.
Getting the rough opening size right the first time will save you from frustration when installing your doors.
99 of the residential garage doors that we run across are different than these widths.
Install the header jambs and center pad of the frame using a 2 x 6 lumber for the header jambs and center pad.
Framing rough opening sizes are really quite simple.
The 16 7 opening should be after the header and all the trim work is installed.
Also make the rough opening 1 5 taller than the 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.
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.