Contents
How far can a TJI joist span?
According to TJI’s span table, switching to deeper 11-7/8 inch joists (a nominal 2×12), even when spaced at 19.2 inches on-center, enable you to go as long as 17 feet, 4 inches and still achieve L/480.
What tji 560?
TJI® 560 joists This section contains design information for 9½”–16″ deep Trus Joist® TJI® joists. These standard-size TJI® joists are readily available through your local Weyerhaeuser dealer or distributor. Offered with the flange sizes shown below, they come in lengths up to 60′ (in 1′ increments).
What is the most common method of supporting TJI joists?
Photo 1 shows the most common method used to support I-joists from wood beams. The I-joists are set in galvanized steel joist hangers that are nailed to both the beam and the I-joists, with the tops of the I-joists flush with the tops of the wood beams.
What does tji stand for joists?
TJI. Trus Joist I-Joist (engineered floor and roof joist; trademark of Trus Joist, a Weyerhaeuser Business)
Are TJI joists good?
Engineered to provide strength and consistency, Weyerhaeuser’s Trus Joist® TJI® joists are one of the most fundamental components of a solid, high-performance floor system. And with their light weight and long lengths, TJI joists are faster and easier to install than traditional framing, which can save time and money.
How much does a TJI joist cost?
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Can TJI joists get wet?
Like all wood materials, I-joists are susceptible to moisture. Avoid unnecessary moisture exposure of all wood components by enclosing the frame against adverse weather as soon as feasible.
Do TJI joists need bridging?
Trus Joist® TJI® joists are made with no observable twist and have minimal material variation between joists within any joist series/depth. Our code report (ICC ESR-1153) specifically states that bridging is not required for floor and roof TJI joist applications.
Can you use I-joists for rafters?
Wood I-joists are used as a framing material primarily in floors, but may also be used as roof rafters where long length and high load capacity are required. They are used as an alternative to sawn lumber.
Are TJI joists more expensive?
What is this? Truss joists are much more expensive than engineered I-beams. They are also substantially heavier, as they are all solid lumber plus metal plates.
Can I use I-joists for rafters?
Do TJI joists need blocking?
Which is TJI 110, 210, 230, 560 joist specifier?
For TJI®110, 210, 230, and 360 Joists Δ = +22.5 wL 42 El 2.67 wL d x 105 For TJI®560 Joists Δ = +22.5 wL 4 El 2.29 wL2 d x 105 TJI®joists are intended for dry-use applications
How to calculate uniform load deflection for TJI joists?
■The following formulas approximate the simple span uniform load deflection of Δ (inches): w = uniform load in pounds per linear foot L = span in feet d = out-to-out depth of the joist in inches El = value from table above For TJI®110, 210, 230, and 360 Joists Δ = +22.5 wL 42 El 2.67 wL d x 105 For TJI®560 Joists
How big is a tji360 joist for dry use?
TJI®joists and products in this guide are intended for dry-use applications. TJI®360 JOIST 3⁄8″ 25⁄16″ 18″ 20″ 13⁄8″
How big should the bearing plate be on a TJI joist?
One 10d (0.128″ x 3″) nail into each flange Bearing plate to be flush with inside face of wall or beam Rim board joint between joists 13⁄4″ minimum bearing at end support TJI®Joist to Bearing Plate