BCI JOIST PDF

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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An engineered wood joistmore commonly known as an I-joistis a product designed to eliminate problems that occur with conventional wood joists.

Invented inthe I-joist is an engineered wood product that has great strength in relation to its size and weight. 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. I-joists’ dimensional soundness and little or no shrinkage help eliminate squeaky floors.

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BCI® Joists

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 I-joist has two main parts, the web and flange. Jjoist flange can be made from laminated veneer lumber or solid wood finger-jointed together for ultimate strength. It is koist on one side to receive the web. The web is typically made from plywoodlaminated veneer lumber, or oriented strand board.

Jiost sizing the webs and flanges, they are assembled with water-resistant glue by pressing the web into the top and bottom flange. After assembly, the I-joist is end-trimmed and heat-cured or left at room temperature to reach approximately equilibrium moisture content.

Sizes vary according to the I-joist’s intended load and span. Depths can range from 9.

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

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. 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. Common mistakes made with installing I-joists include cutting or chiseling the flange, improperly sized joist hangers, improper nailing and wrong-sized nails.

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The rim joist depth must match the I-joist size.

Mismatches can strain the joist. A similar situation occurs where the I-joist crosses a main beam. Missed nails and glue setting too fast can lead to an uneven or squeaky floor. The lightweight nature of I-joists makes them more koist to fire than dimensional lumber. From Wikipedia, the free encyclopedia. Fundamentals of Building Construction.

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