Lintel
A lintel is a beam of steel, concrete or stone over an opening in masonry that carries the wall above.
A lintel is a beam of steel, concrete or stone over an opening in masonry that carries the wall above.
Definition
A lintel spans a door or window opening in a masonry or concrete wall. It carries the weight above and passes it to the wall on either side.
A plain example
Illustrative example only: a brick wall has a window opening. A steel angle or precast concrete lintel rests on the brick at each side with a stated bearing length, and the bricks continue above it.
Why it matters
Without a lintel the masonry above the opening would crack or fall. The bearing length on each side matters as much as the lintel size.
Common confusion
A lintel is the masonry word for what wood framing calls a header. A lintel in steel may also need protection against corrosion.
On a project
Check material, bearing length, corrosion protection and any flashing details above the lintel in the drawings.
Quick answers
- Steel, concrete or stone? The designer chooses based on span, load and appearance.
- How far must it bear on each side? The drawings or code state a minimum bearing length.
- Does it need flashing? Often yes, to direct water out of the wall above the opening.
Related terms
Always check the project drawings and specification, and confirm requirements with the engineer of record and the local authority.
Questions people ask
Steel, concrete or stone?
The designer chooses based on span, load and appearance.
How far must it bear on each side?
The drawings or code state a minimum bearing length.
Does it need flashing?
Often yes, to direct water out of the wall above the opening.
Sources and further reading
Have a project outline or drawings?
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