Rough Opening Requirements For 18 Garage Door

For the jamb 3 4 in.

Rough opening requirements for 18 garage door.

Torsion springs mount on a bar above the door while extension springs stretch down the side of the upper tracks. Frame the rough opening for the garage door to 3 inches wider than the garage door you have selected. Garage doors use either torsion springs or extension springs to raise and lower the door. Getting the rough opening size right the first time will save you from frustration when installing your doors.

You should add 2 1 2 to the height of the actual door. 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. 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. How to frame a garage door 1.

Just add 2 to the width of the actual door size. To finish the opening cut the header and jambs from 2 lumber. Frame the rough opening to a height that is 1 5 taller than the door that you have selected. 99 of the residential garage doors that we run across are different than these widths.

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. Standard garage doors in our area are 8 9 16 and 18 wide. This is how much you need for backroom or the space from the top of the door back towards the garage interior. Add 18 inches to the height of the door.

Measure the head room the distance between the top of the door opening or door jamb header and the ceiling of the 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. If the door is 7 tall frame the opening 7 1 5. Step 3 add 6 to 14 inches to the height of the door for headroom or the space directly above the closed door.

For underlayment and 3 4 in. Standard systems require 10 inches of headroom while some require 12 inches while garage door openers often require an additional three inches of clearance. Framing rough opening sizes are really quite simple. Knowing garage door clearance requirements will help you avoid ordering the wrong garage door set up for your needs.

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. Cut four 2 x 4 trimmers to this length and nail two each to either side of the rough. 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.