Maximum spans are measured centerline to centerline of bearing and are based on uniformly loaded joists.
2nd floor floor joist span tji span chart.
When building a house or even a deck it is important to confirm you have the correct joist sizes spans and spacing before you get started.
2 grade of douglas fir are indicated below.
Live load l 480 total load l 360 5.
Floor joist size span and spacing table.
Tj 9006 installation guide for deep depth tji 360 560 and 560d joists.
Using tji span tables.
Maximum floor joist span for no.
The following screen shot comes from the trus joist tji manual.
Thu sep 13 2018.
The extra two inches of vertical distance when a floor is framed with 2 x 10 joists rather than 2 x 12s can be quite important for example.
They are organized by two main tables one for live load deflections of l 360 and one for l 480.
Spans shown are in feet 4.
The foundation walls are 8 so the span is 19 4 on the second floor.
1 ft 0 3048 m.
Dead load weight of structure and fixed loads 10 lbs ft 2.
1 psf lb f ft 2 47 88 n m 2.
Common sense tells you that large floor joists can carry more load and spacing joists closer together also increases the load bearing capacity of a floor.
Openings are to be located in the center of the span max opening width is 24 inches 7.
But larger is not always better when builders are constructing a home or adding a room addition.
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Total load deflection is limited to l 240.
The indicated spans are based on simple span joists.
Tj 9510 installation guide for floor and roof framing with tji s31 s33 and s47 joists east canada.
The house is 20 8 wide by 58.
Minimum end bearing length is 1 spans in bold require web stiffeners at osb end panel.
The span carts seem indicate this is within the tolerances of the joist for l 480.
The tables look overwhelming but they are actually pretty simple to use.
It shows the standard span tables for tji s.
It is engineered with 11 7 8 tji 360s spanning the 20 8 axis with no intermediate bearing wall in the 1st or 2nd floor systems.
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Tcll top chord floor live load 2.
Top and bottom chords braced by structural sheathing 6.
Tj 9001 installation guide for floor and roof framing with tji 110 210 230 360 and 560 joists.
