Wood Attic Truss Spans

Keep in mind that these tables are for estimations only.

Wood attic truss spans.

Mono used where the roof is required to. Garage attic ion the journal board. A truss given applications building materials and regional. Truss form calculator tool.

30 diffe types of roof trusses roof truss endix 1 8 13 span tables city of garage attic ion the 30 diffe types of roof trusses. 4 to 10 on center spacing. Typical wood truss configurations wood trusses are pre built components that webs and length of spans will vary according to function as structural support members. Ceiling joist and rafter spans home owners work.

Up to 120 spans. You can use sbca s span charts to roughly determine truss sizes available. Our truss designers have all completed truss technician training from the structural building components association. Roof floor truss manual 7 31 08 10 43 am page 12.

Contact your localalpine trussmanufacturerorofficeformoreinformation. A truss of this size and larger usually runs a higher figure of around 4 to 4 75 per foot of truss. Included are a series of representative roof truss span tables that will give you an idea of the truss spans available for a particular load condition load duration lumber type and truss configuration. 28 foot 11 30 foot 12 32 foot 7 34 foot 1 36 foot 6 40 foot 5 50 foot 3 60 foot 3 when making a selection below to narrow your results down each selection made will reload the page to display the desired results.

Parts of a truss framed roof gable end valley set gi rde t u s dutch hip girder dutch hip framing stepdown hip. The webbing is necessary for the strength of the truss and it is needed in a truss this size. And parallel to floor truss span strongback lateral supports 24 max. 72 5 0 mi ni m u m girder floor truss floor truss jacks a a bearing wall girder floor truss floor truss jacks bearing wall cantilevered floor truss two 2x rim joists 24 max.

As you can see in the pictures the roof and ceiling profiles can be made in many shapes and sizes even in curves. Bt b tc 6 6 common truss configurations for the most widely designed roof shapes. Use the span tables below to determine allowable lengths of joists and rafters based on size and standard design loads. 6 4 8 timber joist spans nhbc standards 2020.

To achieve maximum indicated spans trusses may require six or more panels. Roof truss spans up to 86 and floor truss spans up to 40 with depths from 12 to 24.