Wood frame construction is classified as which type?

Wood frame construction is classified as Type 5 construction under the International Building Code (IBC). This classification encompasses buildings that are primarily constructed with wood frame materials, which may include light-frame wood and platform framing methods. Type 5 construction is typically associated with residential buildings and smaller commercial structures.

The defining characteristics of Type 5 construction include the use of combustible materials (mainly wood) for the structural elements like walls, floors, and roofs, and these buildings usually do not have any additional non-combustible protections. Because of its wood-based structure, buildings of this type are more susceptible to fire, which is why specific codes and regulations apply to ensure safety.

Understanding the distinctions between the various construction types helps to ensure appropriate fire safety measures are in place, as Type 1 and Type 2 constructions are non-combustible and provide greater fire resistance, while Type 4 consists of heavy timber construction, which has different characteristics and fire performance attributes.