Header Over Garage Door

Sagging garage door header lift system.

Header over garage door.

The lintellift system is a patented product that ensures garage door lintels or headers won t sag. Window door garage door headers supporting roof loads only. In an attempt to construct portal frames some garages are built with one continuous garage header extending over two or three garage door openings as shown in figure a. Header the header is ideally a minimum 12 wide micro laminated beam that spans the width of the garage door opening.

C to fill in the space between the top of a header and top of a wall. Building a structural header for a garage door opening can be handled on the jobsite and will offer the same structural support as more expensive solid wood beams. Doors in a load bearing wall that holds the weight of the house created by beams and trusses need a larger header than those in non load bearing walls. The procedure for constructing a header for 6 inch exterior wall framing can be modified for any wall thickness.

The header is usually made out of dimensional lumber installed on its edge. For each application a pdf download is available. We have an old cinder block garage shed building built in 1967 with 2 9 foot wide garage door openings. 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.

Loading conditions are detailed below. The garage door header is the large piece of wood at the top of the garage which supports the roof of the garage and any living space above it. Also see assumptions for table development. Tbe row of 6 blocks have a 2 x 10 on top and a 2 x 10 below them.

The header for a door is much like a bridge transferring the weight above it to the floor and foundation below. Garage wall framing typically utilizes this technique encompassing the vehicle doors. These do carry weight. If you notice that your garage door header is starting to sag or has developed cracks then you may have a serious structural problem.

The best way to fix this problem is to replace the header. As a bonus all this extra wood provides an ideal anchor for the nails used to install wood trim and moldings especially the wide stuff. When a garage door lintel fails it causes the brick wall being supported to sag leaving a noticeable crack right above the garage door.