Garage Door Header Requirements

Loading conditions are detailed below.

Garage door header requirements.

Let s get started with your framing 1. To finish the opening. How much headroom is required above a residential garage door. Frame the rough opening to a height that is 1 5 taller than the door that you have selected.

Garage doors operating with torsion springs require a minimum of 9 1 2 inches of headroom while doors using extension springs require a minimum of 4 1 2 inches of headroom. Also see assumptions for table development. 121 mm to 12 in. If the door is 7.

For door openings up to 36 nominal and for structures with no more than two floors above it s a safe bet that doubled 2x10s are adequate as a load bearing header. Window door garage door headers supporting roof loads only. Without more detailed information that s as much as i can say. 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.

If you are installing a 9. Rip 11 inch wide strips of inch plywood using a circular saw. It is possible to mount torsion springs in a garage with only 5 inches of headroom. How to build a garage door header.

Garages with habitable rooms above the garage must be separated by not less than 5 8 inch type x gypsum board applied on the garage side. An attached garage must be separated from the residence and its attic area by not less than 1 2 inch gypsum board applied on the garage side. Frame the rough opening to 3 inches wider than the garage door size you have selected. However this requires mounting the torsion spring on the rear of the horizontal tracks.

For each application a pdf download is available. On the other hand if there is only 4 in. Cut three pieces of 1 inch by 11 inch lumber to the width measurement of the garage door rough opening plus 12 inches. 304 mm available it is best to use a dual track system designed for low headroom.

Lay a single piece of the 1 inch by 11 inch lumber.