Rough Opening Requirements For 18 Garage Door

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.

Rough opening requirements for 18 garage 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. Most new doors are 6 ft. Just add 2 to the width of the actual door size. How to frame a garage door 1.

This is how much you need for backroom or the space from the top of the door back towards the garage interior. 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. Frame the rough opening for the garage door to 3 inches wider than the garage door you have selected. 99 of the residential garage doors that we run across are different than these widths.

Getting the rough opening size right the first time will save you from frustration when installing your doors. To finish the opening cut the header and jambs from 2 lumber. If the door is 7 tall frame the opening 7 1 5. For underlayment and 3 4 in.

Add 18 inches to the height of the door. Knowing garage door clearance requirements will help you avoid ordering the wrong garage door set up for your needs. Framing rough opening sizes are really quite simple. 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.

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. Cut four 2 x 4 trimmers to this length and nail two each to either side of the rough. You should add 2 1 2 to the height of the actual door.

Standard garage doors in our area are 8 9 16 and 18 wide. For finish flooring 3 8 in. Step 3 add 6 to 14 inches to the height of the door for headroom or the space directly above the closed door. Frame the rough opening to a height that is 1 5 taller than the door that you have selected.

Torsion springs mount on a bar above the door while extension springs stretch down the side of the upper tracks. Next you will need to know your door height. For the jamb 3 4 in.