The term I-beam refers to the end view of a structural member that forms the capital letter "I". It would also look like the capital letter H. It actually refers to different types of structural steel members including H-beam, W-beam, and S-beam. In this article, we will explain the precise differences so you can choose the right beam for your construction or manufacturing needs.
I-beams are, in fact, just a generally used term to describe a structural steel beam (or member) with a shape similar to a capitalized I or capitalized H on its side. You may also hear them described as a universal beam.
A classic I-beam shape describes a structural beam with narrow flanges compared to the web length. The downside of an I-beam is that the narrow flanges make it less suitable for use as a column because there is a higher risk of buckling. They also lack torsional strength.
