Standard Size Garage Door Rough Opening

Take the measurements of both the width and the height of the inside of the opening.

Standard size garage door rough opening.

For standard wood framed construction the rough openings for doors and windows is typically the actual unit size plus 2 1 2 inches in height and width. 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. 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. Some manufacturers offer width from 7 up to 18 with 1 increment.

Many homeowners have two cars and need garage space to shelter them both. 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. Well normal garage doors measure 8 x 7 feet 9 x 7 feet and 10 x 7 feet all around. If the door is 7 tall frame the opening 7 1 5.

Standard sizes standard garage doors in our area are 8 9 16 and 18 wide. So if you have a bedroom door that is 30 wide which is considered a 2 6 or 2 6 door just add 2 to the width and frame it 32 wide. For example let s say we want to frame a 6 8 x 3 0 front entry door. 9 and 10 feet high garage doors are less common.

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. You should reconsider the specifications for your garage door if you have multiple vehicles or a large vehicle to park inside. The standard size for double garage doors is 16 feet wide and 7 to 8 feet high. Frame the rough opening to 3 inches wider than the garage door size you have selected.

This post is intended for purposes of clarifying how garage door sizes work and opening preparation. Frame the rough opening to a height that is 1 5 taller than the door that you have selected. 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. Just add 2 to the width of the actual door size.

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. This will give you room to space the door frame off of the sub floor. 99 of the residential garage doors that we run across are different than these widths. Inside opening the rough opening is essentially the size of the finished garage door.

Many home builders do not consider this a structural necessity but a style and price choice for the homeowner. You should add 2 1 2 to the height of the actual door. 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. Framing rough opening sizes are really quite simple.

Standard door rough openings if you re going to frame a rough opening for a door then you ll need to know the unit size. If you are installing a 9 wide door the opening will be 9 3 wide.