Metal Door Header

The header is usually made out of dimensional lumber installed on its edge.

Metal door header.

Steel stud manufacturers association www ssma com cold formed steel details. Each angle is fastened to the top track above an opening with mini. Thd sku 755643. This is the actual thickness of a 2x4.

Set your store to see local availability choose options. Window and door header requirements. The longer the distance a header spans and the heavier the load it supports the more substantial it needs to be. The header for a door is much like a bridge transferring the weight above it to the floor and foundation below.

Lateral load is the horizontal load imposed on the header. The type of wall it is in load bearing or partition will govern how the header is built. 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. You will need to add 1 2 of plywood between the 2x4 s to get the right wall thickness of 3 1 2.

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. 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. Armor door 36 in. A door or window header must be designed to resist both lateral load and dead load.

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. If you are using metal stud framing you can buy an. Fire rated gray right hand flush steel commercial door with knock down frame and hardware 419 00 429 00. Dead load is the vertical load imposed on the header.

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. Cut the door header.