Lintel Sag Formula

[Peter W. Bennett]

new construction (2 years) old
The lintel has a sag.
What's the formula for determining the sag is acceptable/unacceptable?
pb

[Greg Bell]

a divided by b and c equals the acceptable lintel sag.

[Peter W. Bennett]

please clarify a, b.

[Larry D. Kage]

Originally Posted by pbennett1

new construction (2 years) old
The lintel has a sag.
What's the formula for determining the sag is acceptable/unacceptable?
pb

Was there additional information, like cracked brick/mortar, etc., visible?


Lintel design information may be found in Technical Notes
17B http://www.gobrick.com/html/frmset_thnt.htm

and 31B http://www.gobrick.com/html/frmset_thnt.htm


If this information is more than you feel confident understanding or relaying, you may consider reporting only what you see.

[Peter W. Bennett]

gap between mortar joint and lintel was approximately 3/16".

[James E. Braun, CMI]

Something is going on there. It should not sag that much on that new of home. It will only get worse. I would call it out, refer it to a structural engineer and move one.