An engineered wood joist, more commonly known as an I-joist, is a product designed to eliminate problems that occur with conventional wood joists. Invented in. 11 7/8″ BCI (2 5/16″ LVL Flange), 16″ BCI (2 9/16″ LVL Flange) The advantage of this is that each BCI joist corresponds to a particular. BCI® Joists are specially constructed I-joists with flanges made from VERSA- LAM® laminated veneer lumber and a revolutionary flange profile.

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Languages Deutsch Edit links. After sizing the webs and flanges, they are assembled with water-resistant glue by pressing the web into the top and bottom flange.

The intended use for an I-joist is for floor and roof joists, wall studs and roof rafters in both residential and commercial construction. I-joists require correct installation.

National Fire Protection Association Journal.

EASTERN BCI® JOISTS (Boise Cascade, LLC) | Free BIM object for Revit | BIMobject

The most common mistake is misplacing or improperly sizing holes in the web, which can compromise the joist’s strength, potentially leading to structural failure.


Charcoal biochar Firelog Firewood Pellet fuel Wood fuel. Building materials Engineered wood. The web is typically made from plywoodlaminated veneer lumber, or oriented strand board. After assembly, the I-joist is end-trimmed and heat-cured or left at room temperature to reach approximately equilibrium moisture content.

Western BCI® Joists

An I-joist has two main parts, the web and flange. Invented inthe I-joist is an engineered wood product that has great strength in relation to its size and weight. Fundamentals of Building Construction. From Wikipedia, the free encyclopedia. The flange can be made from laminated veneer lumber or solid wood finger-jointed together for ultimate strength. By using this site, you agree to the Terms of Use and Privacy Policy. Missed nails and glue setting too fast can lead to an uneven or squeaky floor.

The disadvantage is very rapid structural failure when directly exposed to fire, reducing the time available for residents to escape and increasing the danger to firefighters. The biggest notable difference from dimensional lumber is that the I-joist carries heavy loads with less lumber than a dimensional solid wood joist.

The advantage of I-joists is they are less likely to bow, crown, twist, cup, check or split as would a dimensional piece of lumber.


WESTERN BCI® JOISTS (Boise Cascade, LLC) | Free BIM object for Revit | BIMobject

The rim joist depth must match the I-joist size. An engineered wood joistmore commonly known as an I-joistis a product designed to eliminate problems that occur with conventional wood joists. Views Read Edit View history. A similar situation occurs where the I-joist crosses a main beam.

It is grooved on one joiist to receive the web. The lightweight nature of I-joists makes them more vulnerable to fire than dimensional lumber.

I-joists’ dimensional soundness and little or no shrinkage help eliminate squeaky floors. Sizes vary according to the I-joist’s intended load and span. Mismatches can strain the joist.

This page was last edited on 23 Decemberat Retrieved from ” https: Depths can range from 9. Common mistakes made with installing I-joists include cutting or chiseling the joisf, improperly sized joist hangers, improper nailing and wrong-sized nails.

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