Header
Definition and meaning of Header in real estate.
A header is a heavy horizontal beam placed over an opening, such as a door or window, to distribute the weight of the structure above to the surrounding studs.
In more detail
In wood-frame construction, load-bearing walls carry weight from the roof and upper floors down to the foundation. When a door or window interrupts these studs, the header acts as a bridge, transferring the weight to the vertical trimmer studs on either side. The size and material of a header depend on the width of the opening and the load it must carry, with larger openings requiring thicker beams or engineered lumber.
If a header is undersized or improperly installed, the framing above can sag, causing windows to crack or doors to stick. Home inspectors and structural engineers evaluate headers when homeowners propose removing walls for open-concept renovations.
Key facts
| Category | Property Types & Construction |
|---|---|
| Material types | Solid lumber, engineered wood (LVL), or steel |
| Supported by | King studs and trimmer (jack) studs |
| Function | Weight distribution and structural support |
To install a new six-foot-wide sliding glass door, a contractor replaces the old wall studs with a double-ply lumber header to support the roof load above the opening.
Frequently asked questions
Do non-load-bearing walls require headers?
No, non-load-bearing walls do not require structural headers, though lightweight frames are still used to secure the top of door and window units.
What is an LVL header?
An LVL (Laminated Veneer Lumber) header is an engineered wood beam that is stronger, straighter, and capable of spanning wider distances than standard solid lumber.