A long, sturdy piece of structured steel or other construction material that is shaped like the capital letter I (with serifs) or H if turned sideways. Its shape allows it to support heavy loads without bending.

Things you need to know

Steel beams can bear more weight than wood, making it possible to construct large open spaces that would not be possible using wood.

Also known as

Universal Beam (UB), Rolled Steel Joist (RSJ)

Cost Considerations

The main factor in the cost of an I-beam is its height and weight per linear foot. The smaller that number is, the less expensive the beam will be.

Costs vary greatly by region (and even by zip code). To get free estimates from local contractors, please indicate yours.

Mentioned in

Build a Barn Cost
Metal Awning Installation Cost
Retaining Wall Cost
Slab vs Crawl Space Foundation Cost