Open Web Floor Truss Spans

Floor trusses can span farther between bearing points than i joists allowing for larger open rooms.

Open web floor truss spans. This also reduces the need and cost for extra bearing posts beams and footings. They should be securely fastened to vertical webs. Span tables below illustrate common combinations of the multiple variables available. Trimjoist is the marriage of an open web floor truss and a trimmable wooden i joist bringing the best features of each to the relationship.

Of bearings and is based on uniformly loaded joists. Shop post frame trusses. Blocking behind the vertical web is recommended while nailing the strongback. The maximum span is measured o c.

The spans are based on simple span joists. Floor truss span chart each individual floor truss design is unique based on multiple variables. As the name trimjoist indicates our product can be trimmed on the construction site for a custom fit. Floor truss span tables alpine engineered products 17 these allowable spans are based on nds 91.

Up to 120 spans. Click to add item 18 x 8 trimmable end floor truss to the compare list. 2x6 strongback lateral supports should be located on edge approximately every 10 feet along the floor truss. Dead load deflection is limited to l 360 and total load deflection is limited to l 240.

Geometry loading spacing bearing conditions etc. Only opening r1 available in 6 foot and 8 foot stock length. Shop floor trusses spacer post frame truss. Spacing of trusses are center to center in inches.

The minimum bearing length is 1 spans values in bold indicate that web stiffeners are required at the osb end panel. Only a single opening d available in 4 foot stock length. No more custom made floor trusses. Maximum deflection is limited by l 360 or l 480 under live load.

Tcll 40 psf tcll 80 psf tcll 125 psf truss spacing truss spacing truss spacing. 8 foot 4 10 foot 4 12 foot 4 14 foot 4. Find span carts for open joist products. Basic lumber design values are f 2000 psi f 1100 psi f 2000 psi e 1 800 000 psi duration of load 1 00.

Openings r2 and d not applicable in shaded areas s adjacent to rectangular opening. Up to 40 open framing for plumbing. When making a selection below to narrow your results down each selection made will reload the page to display the desired results. 4 to 10 on center spacing.