Garage Door Header Detail

Window door garage door headers supporting roof loads only.

Garage door header detail.

Window door garage door headers supporting roof wall floor loads. Rough opening of 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. A rough opening refers to the space left inside a door or window frame door in this case where the actual door will be fitted.

A typical header width with single jack studs is cut 3 larger than the rough opening. Header the header is ideally a minimum 12 wide micro laminated beam that spans the width of the garage door opening. The irc details related to the header are often misunderstood and misapplied leading to an installation with unintended structural consequences. 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.

The procedure for constructing a header for 6 inch exterior wall framing can be modified for any wall thickness. Let s talk about the garage door rough opening first. Also be aware double or triple jack studs may be required based on the opening width and the load the header carries. 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.

For each application a pdf download is available. Loading conditions are detailed below. A 36 door has a rough opening width of 38 so your header is cut at 41. 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.

Also see assumptions for table development. The longer the distance a header spans and the heavier the load it supports the more substantial it needs to be. 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. This piece of.