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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After assembly, the I-joist is end-trimmed and heat-cured or left at room temperature to reach approximately equilibrium moisture content. Building materials Engineered wood.

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Fundamentals of Building Construction. The flange can be made from laminated veneer lumber or solid wood finger-jointed together for ultimate strength.

Western BCI® Joists

Charcoal biochar Firelog Firewood Pellet fuel Wood fuel. 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. National Fire Protection Association Journal. The intended use for an I-joist is for floor and roof joists, wall studs and roof rafters in both residential and commercial bbci.


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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. It is grooved on one side to receive the web. Missed nails and noist setting too fast can lead to an uneven or squeaky floor.

Retrieved from ” https: The biggest notable difference from dimensional lumber is jolst the I-joist carries heavy loads with less lumber than a dimensional solid wood joist.

I-joists’ dimensional soundness and little or no shrinkage help eliminate squeaky floors. Languages Deutsch Edit links.

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


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

Sizes vary according to the I-joist’s intended load and span. An engineered wood joistmore commonly known as an I-joistis a product designed to eliminate problems that occur with conventional wood joists.

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

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

An I-joist has two main parts, the web and flange. 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. Mismatches can strain the joist. Invented inthe I-joist is an engineered wood product that has great strength in relation to its size and weight. The web is typically made from plywoodlaminated jost lumber, or oriented strand board.