What must column bases be set on to ensure correct elevation and full bearing?

Column bases must be set on concrete or masonry to ensure correct elevation and full bearing. Concrete provides a robust and stable foundation that can effectively distribute the load of the column to the ground. This material exhibits high compressive strength, which is essential for supporting significant structural loads. Proper elevation is crucial for ensuring that the structural components align correctly and function as intended, and a solid and level base is necessary for this purpose.

Masonry also provides a stable support similar to concrete, ensuring durability and longevity in the structural integrity of the building. Both concrete and masonry help prevent issues such as settling, tilting, or cracking that can arise if a column base is not properly supported.

In contrast, wood or composite materials do not offer the same level of strength and stability required for column bases. Steel plates may be used in conjunction with concrete to provide additional stability, but on their own, they do not serve as a reliable foundation. Asphalt or tile is also not appropriate for column bases, as they lack the strength and stability necessary to support structural loads effectively.