Frame the rough opening for the garage door to 3 inches wider than the garage door you have selected.
Rough opening for 9 foot wide garage door.
The width of the rough opening should be 3 inches greater than the width of the garage door you are purchasing.
When pricing your door you will need to price a garage door exactly the size of the opening so when calling around for price points be sure that you have this information in hand.
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.
Cut four 2 x 4 trimmers to this length and nail two each to either side of the rough opening.
You get the picture.
For instance if the width of the garage door is 8ft the rough opening should be 8ft 3 inches wide.
If it s 9ft the opening must be 9ft 3 inches and so on.
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.
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.
Standard garage doors start at 7 tall and increase in increments of one foot.
Frame the rough opening to a height that is 1 5 taller than the door that you have selected.
This guide is intended primarily for our builder customers to explain in detail the measurements and condition we need the work site to be in to properly co.
If the door is 7 tall frame the opening 7 1 5.
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.
For residential homes 99 of doors are either exactly 7 or 8 tall.
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.