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.
How far can a TJI joist span?
[7] Maximum on-center spacing for bracing of TJI® 110 is 32″ o.c.; for bracing of all other TJI® joists use 36″ o.c. [8] Maximum clear span limited by scope of 2018 IRC Table 802.5.
What is TJI framing?
The dimensional stability of TJI joists help them resist warping, twisting and shrinking that can lead to squeaky floors. 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.
Who makes TJI joist?
For more information on other applications or other Trus Joist® products, contact your Weyerhaeuser representative. Why Choose Trus Joist® TJi® Joists? For deeper depth TJi® joists, see the Weyerhaeuser deep depth TJi®Joist guide, #TJ-4005, or contact your Weyerhaeuser representative.
Are TJI joists more expensive?
Truss joists are much more expensive than engineered I-beams. They are also substantially heavier, as they are all solid lumber plus metal plates.
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.
What are the strongest joists?
Lumber Grade
Since knots and other defects weaken wood, higher grades of lumber (designated as clear, select, or #1) are considered stronger than lower grades. Higher grades of lumber, however, are also much more expensive. Lumber graded as #2 is the most common choice for floor joists and other framing lumber.
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).
How long can a TJI span?
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).
How do you cut a TJI joist?
How To Quickly Cut TJI Joists
Cut Each Joist One At A Time. The slowest way of cutting these joists is breaking apart the shipping package and pulling out each joist one by one, measuring them and then cutting them. Cut An Entire Bundle At Once. Let Them Run Wild. Order Pre-Cut TJI Joists.
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.
Where do you drill TJI joists?
If you have to put a big hole in an I-joist, the best place is in the middle of the joist span. The closer you get to the edge of a joist, the smaller the hole you’re allowed to place there.
Can you drill through TJI?
All holes larger than 1 ½” must be spaced at least 12” from the edge of the hole to the inside face of bearing. Although cutting holes larger than 1½” in TJI® joist webs near end bearings is not permitted in the table, we recognize that this condition does arise.
How do you reinforce TJI joists?
The best way to strengthen floor joists from underneath is to make a supporting mid-span beam or wall beneath the wobbling joists. Using jack posts or 6×6 posts and 2×10 or 2×8 beams perpendicular to the joists will solve any wobble and ensure your joists never move again.
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