Just about every wood I-joist is stronger, inch for inch, than standard solid floor joists. Many times using wood I-joists can lower construction costs.

Don’t Forget the Connectors Structural connectors are designed to hold framing members to the foundation and to one another. They help a building withstand heavy loads, strong winds and earthquakes.

Not all floor joist lumber has the same strength, and even wood of the same species but of a different grade will have different strength characteristics. And you thought this was going to be easy!

Not all floor joist lumber has the same strength, and even wood of the same species but of a different grade will have different strength characteristics. And you thought this was going to be easy!

Not all floor joist lumber has the same strength, and even wood of the same species but of a different grade will have different strength characteristics.

Not all floor joist lumber has the same strength, and even wood of the same species but of a different grade will have different strength characteristics. And you thought this was going to be easy!

This is something you do not have to worry about with a manufactured wood I-joist. I-joists can be ordered and designed for each application, or a stock size, usually 16 to 18 feet long, can be ...

As an example, 2-by-6-inch No. 2 grade wood floor joists set 16 inches apart can span up to 10 feet 4 inches, whereas a 2-by-8-inch floor joist can span 14 feet and a 2-by-10-inch floor joist can ...

Using I-joists will greatly reduce the occurance of floor squeaks year-round. Running plumbing and wiring with I-joists is done similarly as it is with solid wood joists.