Willis Engineering, Inc. provides Structural Design for all types of residential structures. The Structural Design must ensure that the building will remain standing through time and against the elements while carrying out its intended functions. The design must be code compliant and strike a mutually acceptable balance between public safety, cost of construction, engineering theory and current construction methodologies and limitations. Willis Engineering, Inc. achieves this task, by applying its extensive knowledge of engineering sciences and construction practices to ensure that the structural system will support the building’s own weight, the live loads based on the occupancy and use of the spaces, and environmental loads such as wind and earthquakes.