Asked by: Sergej Machaasked in category: General Last Updated: 7th May, 2020
What does BCI Joist stand for?
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Hereof, what does TJI joist stand for?
TJI stands for Trus Joist I- Joist (engineered floor and roof joist ; trademark of Trus Joist , a Weyerhaeuser Business) Suggest new definition.
Also, what type of wood are joists made of? Joists are either made of wood, engineered wood, or steel , each of which have unique characteristics. Typically, wood joists have the cross section of a plank with the longer faces positioned vertically.
Then, are I joists stronger than timber?
With respect to conventional framing (16 inches or 19.2 inches on center joist spacing), I- joists are 50 percent stiffer than solid sawn lumber . In terms of strength, for simple spans, an I- joist series with the lowest design values (PRI-20) can span to within inches of the strongest solid sawn lumber joist (S. Pine).
What size joist to span 20 feet?
Max. Live Load 30 lbs/ft2 (1436 N/m2)
|Maximum Span (ft - in)|
|Nominal Size (inches)||Joist Spacing Center to Center (inches)||Lumber Grade|
|2 x 10||12||20' - 3"|
|16||18' - 5"|
|24||15' - 0"|