Rough Opening Requirements For 18 Garage Door

If the door is 7 tall frame the opening 7 1 5.

Rough opening requirements for 18 garage door.

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. Framing rough opening sizes are really quite simple. 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. Measure the head room the distance between the top of the door opening or door jamb header and the ceiling of the garage.

Torsion springs mount on a bar above the door while extension springs stretch down the side of the upper tracks. Knowing garage door clearance requirements will help you avoid ordering the wrong garage door set up for your needs. Standard systems require 10 inches of headroom while some require 12 inches while garage door openers often require an additional three inches of clearance. 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.

Garage doors use either torsion springs or extension springs to raise and lower the door. 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. For wiggle room at the top of the door and the top of the trimmer the bottom of the header needs to be 82 5 8 in. Most new doors are 6 ft.

Step 3 add 6 to 14 inches to the height of the door for headroom or the space directly above the closed door. How to frame a garage door 1. For finish flooring 3 8 in. Frame the rough opening for the garage door to 3 inches wider than the garage door you have selected.

For the jamb 3 4 in. Frame the rough opening to a height that is 1 5 taller than the door that you have selected. For underlayment and 3 4 in. Just add 2 to the width of the actual door size.

You should add 2 1 2 to the height of the actual door. Cut four 2 x 4 trimmers to this length and nail two each to either side of the rough. To finish the opening cut the header and jambs from 2 lumber. This is how much you need for backroom or the space from the top of the door back towards the garage interior.

Next you will need to know your door height. Getting the rough opening size right the first time will save you from frustration when installing your doors. Standard garage doors in our area are 8 9 16 and 18 wide.