How To Frame Out A Garage Door

How to measure the finished width and height use of 2x4s for the sides and header.

How to frame out a garage door.

Header requirement 2 at minimum the header should be 12 wide with doubled 2 4 at opening and ceiling running the width of the door with a 2 4 in the center of the opening for the center bracket to attach to. Frame the rough opening for the garage door to 3 inches wider than the garage door you have selected. The most expensive option is laying several courses of blocks on top of frost footings and then resting the edges of the slab on the blocks. Frame the rough opening to 3 inches wider than the garage door size you have selected.

Cut four 2 x 4 trimmers to this length and nail two each to either side of the rough opening. If you are installing a 9 wide door the opening will be 9 3 wide. Frame the rough opening to a height that is 1 5 taller than the door that you have selected. But this is also the most durable and long lasting option.

You will need to add 1 2 of plywood between the 2x4 s to get the right wall thickness of 3 1 2. Cut the door header. 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. Adding one course of block to a slab keeps the garage door framing farther up from the ground which may be necessary depending on the grade.

With the door in the 90 degrees open position start sliding scrap under the outside bottom of the door until your hinges are aligned. Also make the rough opening 1 5 taller than the garage door leave a headroom of 14 or 12 minimum install the header jambs and center pad of the frame using a 2 x 6 lumber for the header jambs and center pad leave at least 5 of space on the sides of the door. Find a 1 2 inch or whatever you decided for the bottom gap piece of scrap and place it under the door near the post. Header the header is ideally a minimum 12 wide micro laminated beam that spans the width of the garage door opening.

To make the door header the top of the door frame cut two 2x4s to the same length as the width of the original opening and nail them securely together.