Metal Door Header

Window and door header requirements.

Metal door header.

Set your store to see local availability choose options. Cut the door header. 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 header for a door is much like a bridge transferring the weight above it to the floor and foundation below.

An l header consists of a cold formed steel angle with one short leg lapping over the top track of the wall and one leg extending down the side of the wall above window or door openings as shown in figure 1. Armor door 36 in. Header tracks header members infill stud use of cripple stud to receive head sill tracks at jamb studs helps maintain alignment of finishes. The longer the distance a header spans and the heavier the load it supports the more substantial it needs to be.

Each angle is fastened to the top track above an opening with mini. 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. The header is usually made out of dimensional lumber installed on its edge. The type of wall it is in load bearing or partition will govern how the header is built.

Dead load is the vertical load imposed on the header. Calculating window and door header requirements is complicated because they depend on a variety of factors including the size of the opening the weight of everything above it snow loads if it s an interior or exterior wall and more. Steel stud manufacturers association www ssma com cold formed steel details. Thd sku 755643.

Lateral load is the horizontal load imposed on the header. You will need to add 1 2 of plywood between the 2x4 s to get the right wall thickness of 3 1 2. This is the actual thickness of a 2x4. A door or window header must be designed to resist both lateral load and dead load.

Fire rated gray right hand flush steel commercial door with knock down frame and hardware 419 00 429 00. To make the door header the top of the door frame cut two 2x4s to the same length as the width of the original opening and nail them securely together.