Which framing method is described by wood studs extending from the foundation to the roof with no vertical fire stop?

Balloon framing is characterized by its method of construction where long wooden studs extend continuously from the foundation all the way to the roof, allowing for open vertical spaces that can facilitate rapid fire spread. This design lacks horizontal fire stops, which means that a fire can travel upward through the stud cavities unobstructed. This is a significant concern in terms of fire safety because without fire stops, there is nothing to impede the flames as they rise, making it easier for a fire to spread vertically through the building.

In contrast, platform framing uses shorter studs that are built in sections or “platforms,” typically with fire stopping measures included to limit vertical fire spread. Post and beam framing relies more on heavy timber construction, and steel framing utilizes steel as the primary structural element. Both of these methods incorporate different materials and designs that do not relate to the continuous vertical stud arrangement of balloon framing. Thus, balloon framing is clearly the correct answer when identifying this specific characteristic within framing methods.