If there are no manufacturer's instructions, what are the requirements for setting house footings?

When there are no specific manufacturer's instructions provided for setting house footings, the correct approach is to follow state regulations. Each state has established building codes and regulations that dictate the standards for construction, including the requirements for footings. These regulations ensure that the structures are built safely, effectively, and in accordance with best practices.

By adhering to state regulations, builders can ensure compliance with safety standards and zoning laws, which can help prevent future issues related to structural integrity and compliance with local building codes. This practice protects not only the integrity of the home being constructed but also the safety of its occupants.

The other options may provide useful general guidance or practices, but they do not hold the same authoritative weight as established state regulations. For instance, standard size footings or a depth minimum might vary from state to state based on local building codes, and consulting an architect is typically an additional step rather than a direct requirement in the absence of specific manufacturer instructions.