What size header do i need for a 8′, 9′, 10′, 12′, 14′, 16′ & 18 foot garage door | 8 foot garage door header size | 10 foot garage door header size | 12 foot garage door header size | 14 foot garage door header size | 16 foot garage door header size | 18 foot garage door header size | 20 foot garage door header size.
If you want to make garage for your car parking, there is a lots of questions comes in mind what is correct header size for garage door and how to install garage framing. There is few points you should know before framing.
Rough openings as the size of the opening before the finished lumber has been added to the jambs. Before you add your framing, the rough opening should be larger than the garage door you’ve chosen. Rough opening should be 3″ wider than the door width measured between the left and right edges. So, in a 10-foot wide garage door, the rough opening will be 10 foot 3″ wide.
The distance between the garage floor and the rough header should be one fand a half inches (1-1/2″) taller than your new garage door’s height. For example, in a standard Eight-foot-tall garage door, the header should be 8′-1-1/2″ feet above the finished floor.
Garage door header
Garage door header:- the garage door header itself should be nine inches wider than the door. Typically, header is provided at least twice size. Garage door header size should be 2 2×8, 2 2×10, 2 2×12 and LVL and Glulam are used.
The standard garage door width and height can vary by where you live, but is usually it is 8 feet wide by 7 feet tall, or 9 feet by 7 feet tall for a single car garage door and 16 feet by 7 feet for a double garage door.
A header is a horizontal beam generally made of timber or Laminated veneer lumber or LVL that provided along the opening in full length for garage door, doorway, window, skylight or stairway. LVL header provide structural support in wood frame construction.
Typically header is provided at least twice size then any other surrounding members such as rafter purlin and stud. It is often made of two joists, rafter or studs. It runs between full length supports and along its length and carry the load of shorter studs, joists or rafter that terminate at the opening.
The header helps to provide support, stability and strength to the top and side sections of the garage door frame. The header for a window & door is seems like a bridge that transferring the weight above it to the floor and foundation below. Doors in a load-bearing wall that holds the weight of the house, created by beams and trusses, need a larger header than those in non-load-bearing walls.
The header is usually made out of dimensional lumber or LVL installed on its edge. Calculating and know the size of the header depends on what the header needs to support.
Headers carry the weight of the structure above and transfer it to the trimmers down to the floors and foundations below. Longer openings such as in garage required larger headers. Load bearing walls those that carry the weight of joists and trusses require larger headers than non-bearing wall.
In this article you know about what size header do i need for a 8′, 9′, 10′, 12′, 14′, 16′ & 18 foot garage door that will help you in better understanding and to figure out or estimate of LVL header size and their depth and help in important for you to use the right size header.
What size header do i need for a 8′, 9′, 10′, 12′, 14′, 16′ & 18 foot garage door
8 foot garage door header size
As per general thumb rule and guidelines, for a 8 foot garage door, header should be 2- 2×8 in size, in which 8 inches deep and 4 inches width, thus you will need something like 2- 2×8 or 4×8 lumber header for a 8 foot garage door.
9 foot garage door header size
As per general thumb rule and guidelines for a 9 foot garage door, header should be double- 2×10 in size, in which 10 inches deep and 4 inches width, thus you will need something like double- 2×10 or 4×10 lumber header for a 9 foot garage door
10 foot garage door header size
As per general thumb rule and guidelines, for a 10 foot garage door, header should be double- 2×10 in size, in which 10 inches deep and 4 inches width, thus you will need something like double- 2×10 or 4×10 lumber header for a 10 foot garage door.
12 foot garage door header size
As per general thumb rule and guidelines, for a 12 foot garage door, header should be double- 2×12 in size, in which 12 inches deep and 4 inches width, thus you will need something like double- 2×12 or 4×12 lumber header for a 12 foot garage door
14 foot garage door header size
As per general thumb rule and guidelines for a 14 foot garage door, header made of lvl should be 2-1.75×14 in size, in which 14 inches deep and 3 inches width, thus you will need something like double- 1.75×11 7/8 or 3×11- 7/8 lvl header for a 14 foot garage door.
16 foot garage door header size
As per general thumb rule and guidelines, for a 16 foot garage door, header made of lvl should be 3-1.75×11-7/8 in size, in which 12 inches deep and 5.25 inches width, thus you will need something like triple- 1.75×11 7/8 or 5.25×11- 7/8 lvl header for a 16 foot garage door.
18 foot garage door header size
As per general thumb rule and guidelines for a 18 foot garage door, header made of lvl should be 3-1.75×11-7/8 in size, in which 12 inches deep and 5.25 inches width, thus you will need something like triple- 1.75×11 7/8 or 5.25×11- 7/8 lvl header for a 18 foot garage door.
20 foot garage door header size
As per general thumb rule and guidelines, for a 20 foot garage door, header made of lvl should be 3-1.75×14 in size, in which 14 inches deep and 5.25 inches width, thus you will need something like triple- 1.75×14 or 5.25 ×14 lvl header for a 20 foot garage door.
Conclusion:-
For a 8 foot garage door, you will need double 2×8 size of header made of lumber, for a 9 & 10 foot span – 2- 2×10, for a 12 foot 2-2×12 and for a 14 foot garage door you will need 2 -1.75×14 size of header.
