A common problem for homeowners and commercial property owners is that the contractor provided a steel lintel over the garage door or other opening that was too light to support brick veneer above. As a result, there is sagging of the steel lintel that creates cracking and distortion of brick above. There may also be problems with steel members that were
undersized or improperly connected.

Sagging wood lintel at apartment porch:

Below is a steel lintel problem over a garage: