Which type of framing is common in California?

The framing methods common in California predominantly include both Western and platform framing. Western framing, often referred to as "balloon framing," originated in the 19th century and involves the construction of long vertical studs that extend from the foundation all the way to the roof. This method has fallen out of favor in recent decades for residential construction, primarily due to safety concerns in seismic zones and limitations in thermal performance.

On the other hand, platform framing has gained popularity and is now the prevalent method used in residential construction in California. This method involves constructing each floor as a separate platform, with the wall studs resting on the platform below. This construction technique allows for better load distribution, improved fire resistance, and is more adaptable to the seismic considerations important in California.

Since both methods have been traditionally used in the region, stating that either Western or platform framing is common adequately acknowledges the historical significance of both styles. However, in modern contexts, platform framing is more widely used due to its advantages in construction efficiency and seismic safety. Thus, the answer correctly reflects that California utilizes both types of framing methods in its building practices.