In platform framing, which statement about walls and floors is true?

• A. Floors are independent of the walls
• B. Walls are built on the floor and tilted up into place
• C. Walls and floors are built separately
• D. Floors are built after roofing

Answer: (B)

In platform framing, what’s being tested is how walls are erected relative to the floor. The walls are built on the floor platform and then tilted up into place, so they’re already aligned and secured to the floor framing as a unit. This method uses the floor system as a stable base for assembling wall frames, making it easier to nail, plumb, and square the walls before they’re raised. Once the wall sections are upright and fastened, the construction continues upward with the next floor platform resting on top of these walls. This sequence—building walls on the floor and raising them into place—captures the core approach of platform framing.