The above steel section sizes should give the user the ability to easily access the member properties and dimensions of commonly used in the Australian Steel Universal Beams. We hope engineers find a reference for these steel beam sizes and dimensions valuable to their work flow. The section properties displayed by the above table including cross sectional area (A), polar moment of inertia (J), moment of area (Iz, Iy), section modulus and warping constant (Iw). These results are extremely important when considering structural steel for your beam and column designs. They are the properties that control the amount and type of force a steel member can take.