Garage Door Header Detail

A typical header width with single jack studs is cut 3 larger than the rough opening.

Garage door header detail.

For each application a pdf download is available. Let s talk about the garage door rough opening first. Loading conditions are detailed below. The longer the distance a header spans and the heavier the load it supports the more substantial it needs to be.

Portal frames are constructed with braced wall panels and full length headers assembled in accordance with the international residential code irc section 602 10 6 for use adjacent to window or door. 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. Last pull a measurement from the top of the 2 x 6 piece of lumber that you just installed to the ceiling of the garage.

For those who are not familiar with what this is. Also see assumptions for table development. Together the headers king studs and trimmers act as a system that transfers weight from above down and around the window and door openings to the floor and foundation below. Cut a 2 x 6 piece of lumber and nail to the face of wall exactly in the center of the garage header.

This piece of. Also be aware double or triple jack studs may be required based on the opening width and the load the header carries. A 36 door has a rough opening width of 38 so your header is cut at 41. The irc details related to the header are often misunderstood and misapplied leading to an installation with unintended structural consequences.

Window door garage door headers supporting roof loads only. 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. Rough opening of garage door. Header the header is ideally a minimum 12 wide micro laminated beam that spans the width of the garage door opening.