Garage Door Header Requirements

Frame the rough opening to a height that is 1 5 taller than the door that you have selected.

Garage door header requirements.

How to build a garage door header. For each application a pdf download is available. Also see assumptions for table development. Window door garage door headers supporting roof loads only.

Frame the rough opening to 3 inches wider than the garage door size you have selected. Rip 11 inch wide strips of inch plywood using a circular saw. Let s get started with your framing 1. 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.

It is possible to mount torsion springs in a garage with only 5 inches of headroom. 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. Window door garage door headers supporting roof wall floor loads. 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.

To finish the opening. 304 mm available it is best to use a dual track system designed for low headroom. 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. On the other hand if there is only 4 in.

Loading conditions are detailed below. If you are installing a 9. Without more detailed information that s as much as i can say. Lay a single piece of the 1 inch by 11 inch lumber.

121 mm to 12 in. In order to install torsion spring hardware we recommend a clearance of 12 in. Cut three pieces of 1 inch by 11 inch lumber to the width measurement of the garage door rough opening plus 12 inches. Header the header is ideally a minimum 12 wide micro laminated beam that spans the width of the garage door opening.

However this requires mounting the torsion spring on the rear of the horizontal tracks.