Lally Column
Definition and meaning of Lally Column in real estate.
A lally column is a structural support member consisting of a round, hollow steel pipe filled with concrete. It is typically installed in basements or crawl spaces to support heavy overhead beams and girders.
In more detail
These columns are designed to prevent structural sagging by transferring the weight of the building down to the foundation. Because they are filled with concrete, they provide high load-bearing capacity and offer fire resistance compared to open hollow columns. Home inspectors check these supports for rust, bending, or improper installation.
Homeowners must ensure the columns rest on a proper concrete footing to prevent settling. Modifying or removing a lally column should only be done under the guidance of a structural engineer.
Key facts
| Category | Property Types & Construction |
|---|---|
| Also known as | Lally column or structural column |
| Common location | Basements and crawl spaces |
| Primary material | Concrete-filled steel pipe |
During a basement inspection, a buyer noticed that a steel support post was severely rusted at the base, prompting them to hire a contractor to replace the damaged lally column.
Frequently asked questions
Can I remove a lally column in my basement?
You cannot remove a lally column without installing a replacement support system, such as a larger load-bearing beam. Removing a column without proper engineering support can cause structural collapse.
How can you tell if a lally column is failing?
Signs of failure include severe rust at the bottom, bowing or leaning of the column, or cracks in the concrete slab around the base of the column.