Which type of framing involves a single system of wall studs run from the foundation through the first and second floors to the ceiling support?

The type of framing that involves a single system of wall studs extending continuously from the foundation through the first and second floors all the way to the ceiling support is known as balloon framing. This method utilizes long vertical wall studs that are typically more than one story tall, allowing them to carry loads from both the upper floors and the roof down to the foundation without interruption.

Balloon framing became popular in the late 19th century and is particularly effective in situations where there is a requirement for faster construction and can provide certain aesthetic qualities due to the continuous lines of framing. It also allows for easier placement of windows and doors on the upper levels.

In contrast, platform framing, which is more commonly used in modern construction, involves building the structure one floor at a time, with the wall studs only running from one floor to the next, rather than continuously from the foundation to the ceiling. This distinction is crucial as it impacts both the construction technique and structural integrity of the building. The other options—Post and Beam and Structural Insulated Panels—describe different framing systems that do not have the continuous vertical stud characteristic of balloon framing.