Header

Definition

A Header is a structural support over an opening, such as a lintel, a joist that supports other joists, or a short joist into which common joists are framed around or over an opening.

Purpose

Headers provide necessary support over openings like doors, windows, and passages in buildings. They distribute the structural load around the opening, preventing sagging or collapse, and ensuring the integrity of the building framework.

Examples of Use

1. Door Frames: Supporting the load above a doorway.
2. Window Frames: Providing structural support above window openings.
3. Ceiling Joists: Supporting other joists in the ceiling structure.
4. Openings in Floors: Reinforcing the floor structure around stairwells or other openings.

Related Terms

• Lintel: A horizontal support across the top of a door or window.
• Joist: A horizontal structural member used in framing floors or ceilings.
• Beam: A larger structural element that supports joists and other loads.

Notes

Headers must be properly sized and installed according to building codes and structural requirements to ensure they can adequately support the loads imposed on them. Incorrect installation can lead to structural failure.