What type of construction division includes the steel and wood work?

Steel and wood work primarily fall under the category of construction that involves the structural framework of buildings, which is classified as Structural Divisions. This division encompasses all components that are critical to ensuring the stability and integrity of a structure, including elements such as beams, trusses, columns, and framing systems.

Structural work is essential in constructing buildings, as it supports the loads applied during the building's lifetime. While mechanical divisions pertain to systems like HVAC (heating, ventilation, and air conditioning), electrical divisions deal with wiring and power systems, and specialty construction refers to specific projects or trades not included in the primary divisions like specialty finishes or custom installations, none of these options directly involve the fundamental construction materials and methods associated with creating a building's structural system, which is where steel and wood work is categorized.