Which type of construction is used for almost all modern wood-frame construction?

The type of construction commonly used in modern wood-frame buildings is the platform frame. This method involves constructing the building in levels or platforms, beginning with the foundation, then adding each subsequent floor one at a time. The walls are built on top of each platform, creating a strong structural support system.

The platform frame is efficient because it allows individual floors to be constructed independently, making it easier to manage the framing process. This approach also enhances safety, as framing is done at one level before moving on to the next, reducing the risks associated with working at significant heights. Additionally, the platform framing technique utilizes fewer materials than other methods while providing sufficient strength and stability for residential structures.

In contrast, balloon framing is an older technique that uses continuous vertical wall studs that extend from the foundation to the roof, which can create structural challenges and fire hazards. Post-and-beam framing involves using larger timbers and can be more labor-intensive and expensive, while steel framing, typically used for commercial or industrial buildings, does not apply to most wood-frame residential construction. Thus, platform framing has become the dominant method in modern wood-frame construction due to its practicality, efficiency, and safety.