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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The web is typically made from plywoodlaminated veneer lumber, or oriented strand board. The advantage of I-joists is they are less likely to bow, crown, twist, cup, josit or split as would a dimensional piece of lumber.

I-joist – Wikipedia

Common mistakes made with installing I-joists include cutting or chiseling the flange, improperly sized joist cbi, improper nailing and wrong-sized nails. Views Read Edit View history. Mismatches can strain the joist.

National Fire Protection Association Journal. 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.


An engineered wood joistmore commonly known as an I-joistis a product designed to eliminate problems jois occur with conventional wood joists. An I-joist has two main parts, the web and flange. After assembly, the I-joist is end-trimmed and heat-cured or left at room temperature to reach approximately equilibrium moisture content.

Eastern BCI® Joists

Depths can range from joisg. This page was last edited on 23 Decemberat The intended use for an I-joist is for floor and roof joists, wall studs and roof rafters in both residential and commercial construction. 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.

Building materials Engineered wood. The lightweight nature of I-joists makes them more vulnerable to fire than dimensional lumber. The rim joist depth must match the I-joist size.

By using this site, you agree to the Terms of Use and Privacy Policy. Invented inthe I-joist is an engineered wood product that has great strength in relation to its size and weight. It is grooved on one side to receive the web.


Boise Cascade® BCI® Joist | BCI | Build With BMC

Fundamentals of Building Construction. Languages Deutsch Edit links. Missed nails and glue setting too fast can lead to an uneven or squeaky floor. I-joists require correct installation. The biggest notable difference from dimensional lumber is that the I-joist carries heavy loads with joidt lumber than a dimensional solid wood joist.

Sizes vary according to the I-joist’s intended load and span.

Retrieved from ” https: From Wikipedia, the free encyclopedia. Charcoal biochar Firelog Firewood Pellet fuel Wood fuel.

Western BCI® Joists

The flange can be made from laminated veneer lumber or solid wood finger-jointed together for ultimate strength. After sizing the webs and flanges, they are assembled with water-resistant glue by pressing the web into the top and bottom flange.

A similar situation occurs where the I-joist crosses a main beam. I-joists’ dimensional soundness and bcci or no shrinkage help eliminate squeaky floors.