How far can you span a TJI joist?
 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.
How far can a 16 TJI span?
TJI–TRUSS JOIST P/S
|TJI||CHORD DEPTH||16″ O.C. MAX SPAN|
How far can 11 7 8 I-joist span?
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.
How far can you span a 12 inch I-joist?
You can go up to 17 feet, 9 inches if you use 9-12 inch-deep joists that are 12 inches on-center.
How far can an engineered joist span?
Joists are available in several depths and lengths and superior strength allows them to span up to 30 feet (TRIFORCE span tables).
Can a 2×12 span 20 feet?
In general terms, joist or beam which spaced 16 inches apart on Centre can span 1.5 times in feet their depth in inches. A 2×14 can span upto 20 feet. What size beam to span 20 ft:- as per general thumb rule and guidelines, a 4 nailed 2×16 or 4-2×16 or 8×16 size of wood beam can allow to span 20 ft.
How far can a 2×12 span for a roof?
Max. Live Load 60 lbs/ft2 (2873 N/m2)
|Maximum Span (ft – in)|
|Nominal Size (inches)||Joist Spacing Center to Center, OC (inches)||Lumber Grade|
|2 x 12||12||18′|
|16||15′ – 7”|
|24||12′ – 9”|