What is the typical maximum spacing for floor framing?

The typical maximum spacing for floor framing is 16 inches on center. This measurement is a widely accepted standard in construction, particularly important for ensuring proper structural support and load distribution in flooring systems. Spacing floor joists at this interval allows for adequate weight support from both the flooring and any loads applied on top, such as furniture, people, and appliances.

Using this spacing helps to maintain the integrity of the floor and reduces the likelihood of sagging or bouncing, which can be problematic in areas with high foot traffic. While some applications may allow for wider spacing, using 16 inches on center strikes a balance between structural soundness and material efficiency, making it the preferred choice for most residential and commercial floor installations.

Other spacing options, such as 12 inches or 24 inches, might be used in specific situations or for specialized structures, but 16 inches on center is the standard that supports optimal performance and safety for typical flooring designs.