07/07/2025
As a construction engineer, site engineer, or builder, you should know how to identify when a lintel is actually functioning as a beam and design it properly.
First, let’s me make this clear: not everything placed at “lintel level” is truly a lintel.
First, what is a lintel?
A lintel is basically a horizontal element placed over an opening (like a window or door) to carry the load from above and transfer it to the sides (usually walls or columns). It’s usually for relatively small spans and light loads
What is a beam?
A beam is a horizontal structural element designed to carry significant loads (floor slabs, roofs, walls, etc.) and transfer them to supports (columns or walls). Beams are usually designed for larger spans and heavier loads
Let us now look at the scenario where lintel in preference can turn to a beam in function
✅ When the span is longer than what a typical lintel can safely handle, you must treat it as a beam.
✅ When the load coming onto it is heavier than just the wall portion above, treat it as a beam.
✅ When it carries additional loads, such as floor slabs or direct roof loads, it has become a beam.
✅ When the supports are unfavorable ,for example, if there is no proper edge or side wall to fully support it. You must treat it like a beam (or even a cantilever in some cases).
You should understand the principles that guide you in changing the structural role of any element in a building. That’s why it is important to understand the why behind every detail, not just the how.
There are guiding principles that define the maximum span you can safely call a lintel, and beyond that, it’s no longer a lintel but a beam. Similarly, there are limits on load and support conditions that tell you when to reclassify it.
All these factors play a vital role in your design but critically during actual construction on site. You should always know when to treat an element like a lintel and when to upgrade its treatment to that of a beam.
In the end, it’s about safety, performance, and durability
Knowing these principles is what separates a true professional from someone just following drawings blindly.
As a reminder : not everything placed at “lintel level” is truly a lintel some are to do the work of a beam and do treat them as one .
AKOD-PROJECTS
