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.

Rough opening requirements for 18 garage 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. You should add 2 1 2 to the height of the actual 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. Standard garage doors in our area are 8 9 16 and 18 wide.

Garage doors use either torsion springs or extension springs to raise and lower the door. Framing rough opening sizes are really quite simple. Getting the rough opening size right the first time will save you from frustration when installing your doors. Measure the head room the distance between the top of the door opening or door jamb header and the ceiling of the garage.

Cut four 2 x 4 trimmers to this length and nail two each to either side of the rough. 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. Next you will need to know your door height. Knowing garage door clearance requirements will help you avoid ordering the wrong garage door set up for your needs.

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. For the jamb 3 4 in. Torsion springs mount on a bar above the door while extension springs stretch down the side of the upper tracks. 99 of the residential garage doors that we run across are different than these widths.

Add 18 inches to the height of the door. How to frame a garage door 1. Just add 2 to the width of the actual door size. 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.

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. Frame the rough opening to a height that is 1 5 taller than the door that you have selected. Step 3 add 6 to 14 inches to the height of the door for headroom or the space directly above the closed door.

To finish the opening cut the header and jambs from 2 lumber. Standard systems require 10 inches of headroom while some require 12 inches while garage door openers often require an additional three inches of clearance. For underlayment and 3 4 in.