Modern wood-frame construction uses a technique that builds one floor at a time. What is this technique called?

The technique referred to in the question is known as platform-frame construction. This method involves constructing the building one floor at a time, where each floor acts as its own platform for the next. Essentially, the frame for the first floor is built, the floor decking is installed, and then the walls for the second floor are erected on top of the first floor's platform. This sequential building process provides a solid and stable support structure.

Platform framing is commonly used in residential construction and allows for easier assembly and more efficient use of materials. It also permits the installation of insulation and utilities more readily between the floors. This technique contrasts with other methods, such as balloon framing, where the walls extend through multiple stories without the interruption of floor platforms, which can lead to challenges in terms of stability and fire safety.

Understanding this construction technique is crucial for firefighters as it influences their approach to firefighting tactics, building stability assessments, and safety considerations in emergency situations.