What size steel I beam do you need to carry a 5000 pound point load with a span of 20 feet?

To determine the appropriate size of a steel I-beam for a 5,000-pound point load over a 20-foot span, you'll need to consider factors such as the beam's material properties and safety factors. Typically, a W8x10 or W10x12 I-beam might be suitable for this load, but it's crucial to perform detailed calculations or consult a structural engineer to ensure compliance with local building codes and safety requirements. Additionally, factors such as beam support conditions and deflection limits should be considered in the final design.