What is the minimum requirement for fire blocking in concealed spaces of what type of construction?

In wood-framed construction, fire blocking is essential for preventing the spread of fire and smoke through concealed spaces, such as wall cavities and floor joists. The minimum requirement for fire blocking in these areas is typically to install fire blocking in both horizontal and vertical concealed spaces to create barriers that slow down or stop fire movement.

In wood-framed buildings, fire blocking is often mandated at specific intervals—typically every 10 feet for horizontal spaces and at the top of walls. This is crucial for safety, as wood is much more combustible than other materials like steel or concrete, making fire blocking particularly important in buildings constructed primarily from wood.

The other types of construction, such as steel-framed, concrete-framed, and combination-framed, involve materials that are inherently more fire-resistant, which often changes the requirements or necessity of fire blocking. However, wood-framed structures are specifically required to have these fire-blocking measures in place to enhance fire safety and abide by building codes.