A beam hanger is a heavy-duty metal connector engineered to support the significantly larger loads a beam or girder carries, compared to the lighter connections a standard joist hanger is designed for, typically using thicker steel and more substantial fastening requirements.
Because beams often concentrate the load of multiple joists or an entire section of a structure, the hardware connecting them to their supports needs proportionally greater rated capacity than standard joist hardware provides.
Selecting an appropriately rated beam hanger for the specific load involved is a genuine engineering decision rather than a simple hardware store purchase, given how much structural responsibility this connection carries.
What Does a Beam Hanger Involve?
- Heavy-gauge steel construction
- Sizing and rated capacity matched to the specific beam load
- Structural bolts or heavy-duty screws for fastening
- Engineering verification for critical structural applications
Why Are Beam Hangers Important?
Given how much concentrated load a beam typically carries, an inadequately rated or improperly installed beam hanger represents a much more significant structural risk than a comparable deficiency at a standard joist connection, making correct selection and installation particularly important. This is why beam hanger specifications for critical structural connections are often verified by an engineer rather than selected based on general contractor judgment alone.
Installation quality matters as much as hardware selection, since even a properly rated beam hanger fastened with the wrong bolts or screws, or installed without full contact against the beam, can fail to deliver its full rated capacity when actually loaded. This level of scrutiny reflects how much structural responsibility this connection genuinely carries.
Beam Hanger vs. Joist Hanger
A beam hanger is engineered for the heavier concentrated loads a beam carries. A joist hanger is sized for the lighter, more distributed loads typical of standard floor or ceiling joists, making the two products distinct despite serving a conceptually similar connection function.