![]() When the material arrives on the jobsite, there is minimal cutting, and carpenters know exactly where every joist goes. This software creates a layout and specifies where every single framing member goes. Joists can also be spaced wider than traditional solid sawn joists which allows for quicker and easier installationĪll TJI Joists are designed using patented software that designs a floor taylor-made for every home. Large holes can be cut in the webbing of TJI Joists, allowing for mechanicals to be easily run and installed. Allow for spacing for HVAC, Electrical, and Plumbing 1) the LVL flange holds fasteners better, preventing loose nails that cause squeaks, and 2) it will not shrink over time with the moisture change which is another common cause of squeaksĪll TJI Joists will be perfectly straight and will not twist, warp, or cup I-Joists can span up to a whopping 32' without support, giving custom home builders the ability to create open floor plans that customers demandĪn LVL flange is critical for a high performing floor because it prevents squeaky floors in two ways. Multiple depths and series for any application LVL Flange for superior strength and a squeak-free floor L/480 is the design criteria we recommend for the best performing floor To Submit Blueprints for Takeoff's - Click Here Rafter span lists - Use these tables up determine lengths, sizes and spacing of rafters based on a diversity by factors such as, species, load, grade, and spacing. And is one of the most trusted brands in the building community today. Has been the #1 used I-Joist for the past 14 years Pushed the limits of span charts to make the open floor concepts of today a reality Lead innovation and design to create a suite of Engineered Wood Products, including I-Joist, LVL Microllam, LSL Timberstrand, and PSL Parallam Invented the very first I-Joist over 50 years ago In contrast, the same rafter can span only up to 16’-4 with an attached ceiling. For 12 spacing and the SS grade of Douglas fir-larch, a 2圆 rafter with an unattached ceiling can span up to 18’. Rafter spans with ceilings attached are relatively smaller than those without ceilings attached. Maximum floor span o.c.When you choose Trus Joist, you're choosing the brand that: Spans for Rafters with Attached Ceilings. Live load: 40 psf / Dead Load: 36 psf / Depth: 11 7/8″ – Span table Live load Live load: 40 psf / Dead Load: 15 psf / Depth: 16″ – Span table Live load Live load: 40 psf / Dead Load: 15 psf / Depth: 14″ – Span table Live load Live load: 40 psf / Dead Load: 15 psf / Depth: 11 7/8″ – Span table Live load Live load: 100 psf / Dead Load: 15 psf / Depth: 16″ – span table.Live load: 100 psf / Dead Load: 15 psf / Depth: 14″ – span table.Live load: 100 psf / Dead Load: 15 psf / Depth: 11 7/8″ – span table.Live load: 40 psf / Dead Load: 36 psf / Depth: 16″ – span table.Live load: 40 psf / Dead Load: 36 psf / Depth: 14″ – span table.Live load: 40 psf / Dead Load: 36 psf / Depth: 11 7/8″ – span table.Live load: 40 psf / Dead Load: 15 psf / Depth: 16″ – span table.Live load: 40 psf / Dead Load: 15 psf / Depth: 14″ – span table.Live load: 40 psf / Dead Load: 15 psf / Depth: 11 7/8″ – span table.ΔL ≤ L/360 Span tables menu (Canadian Edition): Glued & Nailed Subfloor with strongbacks / ceiling optional Maximum Allowable Spans – Canadian Edition Please contact your representative to determine quantities. Refer to appropriate sections of the Specifier Guide for installation guidelines and construction details.The subfloor must be glued as per APA Specification AFG-01 or ASTM D3498 and nailed as per NDS, ICC IBC/IRC code. and is a “24 oc APA rated panel” for joist’s spacing of 24″ o.c. The considered subfloor is a “20 oc APA rated panel” for joist’s spacing of 12″, 16″ and 19.2″ o.c.The second span table is the same as the first, except it assumes a ground snow load of 50 Psf. The indicated spans are based on the Allowable Stress Design method as per NDS, ICC IBC/IRC code. The first span table is for roofs where the ceiling is not attached to the rafters (with no snow load), a live load of 20 Psf, a dead load of 20 Psf, and a deflection limit of L/180.Live Load deflection is limited to L/480. ![]() Total Load deflection is limited to L/240.Maximum spans are measured centerline to centerline of bearing and are based on uniformly loaded joists.Minimum end bearing length is 1½”, spans in bold require web stiffeners at OSB end panel.The indicated spans are based on simple span joists.Live load: 100 psf / Dead Load: 15 psf / Depth: 16″ – Span table Live load
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