Engineered Floor Trusses Spans

9 16 tji joists design properties 6 floor span and load tables 7 8 tips for preventing floor noise 8 allowable holes 9 cantilevers 10 11 roof span and load tables 12 13 framing connectors 14 15.

Engineered floor trusses spans.

1 psf lb f ft 2 47 88 n m 2. This also reduces the need and cost for extra bearing posts beams and footings. Floor trusses have built in openings which can be used to install hvac ductwork plumbing lines and electrical wiring. Floor truss span tables alpine engineered products 17 these allowable spans are based on nds 91.

Floor joists are available in several depths and lengths that are sufficient for most residential and commercial building plans. Their strength and long lengths give you the freedom to design the open spacious floor plans that your customers want. Engineered wood products ewp span and size charts for bci joists. Spacing of trusses are center to center in inches.

Apa performance rated i joists pris are manufactured in accordance with pri 400 performance standard for apa ews i joists form x720 this performance standard provides an easy to use table of allowable spans for applications in residential floor construction allowing designers and builders to select and use i joists from various member manufacturers using just one set of span. Tcdl 10 psf and bcdl 5 psf 3. Openings are to be located in the center of the span max opening width is 24 inches 7. Knowing which span length of the joists.

Fire safe construction 3 floor performance and tj pro rating 4 5 section 1. Basic lumber design values are f 2000 psi f 1100 psi f 2000 psi e 1 800 000 psi duration of load 1 00. Dead load weight of structure and fixed loads 10 lbs ft 2. 1 ft 0 3048 m.

Bci joists are specially constructed i joists with flanges made from strong versa lam laminated veneer lumber with oriented stranded board webs and approved waterproof structural adhesives providing outstanding strength and durability. I joists can be custom made for plans that require unusual sizes. Live load l 480 total load l 360 5. Floor trusses can span farther between bearing points than i joists allowing for larger open rooms.

Joists come in two foot incremental lengths beginning at 4 feet and spanning as far as 30 feet and can be trimmed by up to 24 inches. 2 grade of douglas fir are indicated below. Maximum floor joist span for no. The engineered strength of the trimjoist system provides for longer spans and wider on center spacing that results in lower costs from both the material and the labor perspective.

Tcll top chord floor live load 2. The typical engineered floor joist is made of lumber in the shape of an i thus commonly called an i joist. Spans shown are in feet 4. Maximum deflection is limited by l 360 or l 480 under live load.

Tji joist specifier s guide tj 4000 july 2019. Top and bottom chords braced by structural sheathing 6.