For buildings less 50,000 square feet, steel construction costs tend to be lower than those for concrete. However, concrete does have its advantages, and there are situations in which it becomes more suitable than steel. Such situations may be dictated by:
The local authorities will always have a say on building materials, which is why location may force you to use concrete instead of steel. For example, local fire codes may preclude the construction of a steel building because the material is not as fire resistance as concrete.