How far can TJI joists span?
 Maximum on-center spacing for bracing of TJI® 110 is 32″ o.c.; for bracing of all other TJI® joists use 36″ o.c.  Maximum clear span limited by scope of 2018 IRC Table 802.5.
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.
How far can a 11 7 8 TJI span?
TJI–TRUSS JOIST P/S
|TJI||CHORD DEPTH||16″ O.C. MAX SPAN|
How far can 11 7 8 I-joist span?
17 feet, 8 inches
Span refers to the length of the I-joist. The L/480 table with a 40 per square foot live load and a 20 per square foot dead load with a depth of 11 7/8 inches will give you spans according to joint weight. With these factors, the lightest joist will have a maximum span of 17 feet, 8 inches.
Can I-joist span 30?
Joists are available in several depths and lengths and superior strength allows them to span up to 30 feet (TRIFORCE span tables).
Can you drill holes in TJI?
Big holes in the middle are fine. In fact, you can put holes that go almost all the way from the bottom to the top of the joist. TJI, for example, say you just need to leave 1/8″ of webbing remaining! For people used to looking at dimensional lumber, these holes look very, very wrong… but they’re actually fine.
Do TJI joists need bridging?
Our code report (ICC ESR-1153) specifically states that bridging is not required for floor and roof TJI joist applications. Weyerhaeuser has found that the addition of bridging does little to improve floor performance and may create squeaks.
How do you stiffen TJI joists?
But when Tom sisters or stiffens the underside of I-joists, he uses plywood. For sistering, cut ¾-inch plywood into long strips the same width as the joist’s web. Glue them to both sides of the web and nail with 4d or 6d nails. Make sure to stagger the end joints on either side of the web.
What is a TJI 230?
Sold by lineal foot. Trus Joist® TJI® joists are lightweight, easy to work with, and deliver unmatched dimensional stability and performance. They are engineered to resist the bowing, twisting, and shrinking that can lead to squeaky or “soft” floors. 2-5/16 inches x 9-1/2 inches. Engineered for strength and consistency.
How far can a tji span?
Those maximum distances vary based on joist strength, depth, and on-center spacing. 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 does TJI joist stand for?
TJI stands for Truss Joist I-Joist. The engineered wood I-joist can be used for joists or trusses, are stronger and lighter than dimensional lumber of similar widths, and can span greater distances. The truss-joists are engineered to resist twisting and warping, and won’t shrink like dimensional lumber.
What is the difference between TJI joists and traditional framing?
TJI joists are lightweight and come in long lengths, which makes them faster and easier to install than traditional framing, and saves you both time and money. Weyerhaeuser offers an array of software packages to help you specify individual framing members, create cut lists, manage inventories — even to help you design a complete structural frame.
What is Weyerhaeuser TJI floor framing?
Weyerhaeuser TJI® Joist Floor Framing includes a series of joists made in Canada: Weyerhaeuser Trus Joist® TJI® s31, s33 and s47 joists. These new joists offer a wide nailing surface for faster installation and easier handling, and provide the same guaranteed performance you’ve come to expect from Weyerhaeuser products.
Where to hang TJI joists on a beam?
As you can see in the photo hangers have been installed along the face of the carrying beam in order to carry the TJI joists. Anyone that’s ever nailed into a PSL beam will tell you it’s like trying to nail into rock.
What are TJI’s?
TJI’s (engineered wood I joists) are my preferred framing members for floor systems. TJI’s offer many benefits compared to traditional dimensional lumber joists including: almost no twisting or warping, very little dimensional shrinkage, stiffness and strength. Framing a floor with TJI’s is really no different than framing with dimensional lumber.