Floor Joist Bridging Spacing. It is usually required when the joist spans are more than 8 feet. The spacing of floor joists is just one of the components used to determine the minimum size of the floor joist.
Bridging between joists floor plans or specifications usually call for bridging between joists. Per the prescriptive tables found in chapter 5 of the international residential code (irc), the standard floor joist spacing. As with the joist size, the building code for your structure will stipulate the proper spacing between floor joists.
Table of Contents
When Building A House Or Even A Deck, It Is Important To Confirm You Have The Correct Joist Sizes, Spans And Spacing Before You Get Started.
While most residential construction uses 2×8 joists with 16 inch spacing, there are many other factors you need to consider when determining the proper joist span length. See the image below for an example of joists spaced 16 on center (16 o.c.). Joists that overlap at a beam should be blocked to prevent twisting, ensure spacing, and transfer compression and flexing stresses between multiple joists.
Floor Joist Bridging Spacing The Irc Does Not Demand Floor Joist Bridging Unless Your Floor Joists Are Greater Than 12″ Wide.
Floor joist bridging is critical to the structural strength of a floor, as shown in figure 1. Proper bridging distributes the load on the floor to other joists and over time prevents floors from sagging and squeaking do to floor joists twisting and warping. Floor joists are typically 12”, 16”, or 24” apart in a home.
Bridging Holds The Joists In Line And Helps Distribute The Load Carried By The Floor Unit.
Normally, floor joists are spaced 16 inches apart on center. Although not a requirement, it is highly recommended that your floor joist and wall studs line up with each other. If so, bridging should be positioned something like 8′ on focus from the subsequent bridging column.
Bridging Is Sized For Joists Centered 16 In.
It is usually required when the joist spans are more than 8 feet. Measure the joist spacing before you go shopping; For longer spans, two rows of bridging spaced 6.
Finally, It’s Crucial To Note That Bridging Isn’t Recommended For Every Type Of Flooring.
The floor joist spacing is the distance between the centers of any two installed joists. A floor that just has joists, and no bridging, will wear out faster from heavy traffic. If so, then bridging should be placed no less than 8’ on center from the next row of bridging.