What Is A Floor Truss

Floor truss span chart each individual floor truss design is unique based on multiple variables.

What is a floor truss.

It is often used for floor construction. Because they are manufactured off site according to the specifications of the project the need for alterations is almost completely eliminated. Roof floor truss manual 7 31 08 10 43 am page 12. Truss systems of this type usually go beyond the simple floor joists that are common to all types of floors.

Floor trusses are able to span farther than dimensional lumber and even i joists. Though construction lumber cannot span as far as floor trusses or i joists it is readily available and when used within its strength capabilities construction lumber will produce a solid feeling floor system. The floor truss actually creates an interconnecting network between the joists providing the flooring with a level of strength that would be hard to accomplish otherwise. Plated floor trusses are very heavy present a handling danger because of sharp plate edges and plates often interfere with the installation of mechanicals.

Floor trusses though are an economical alternative to joists. Inclined or horizontal member that establishes the bottom of a truss usually carrying combined tension and bending stresses. A combination of the two is a truncated truss used in hip roof construction. A floor truss is a system of support that helps to keep floors level and sturdy.

Elements that make a floor truss. Geometry loading spacing bearing conditions etc. Truss members form a series of equilateral triangles alternating up and down. A preassembled unit of floor joists subflooring.

Span tables below illustrate common combinations of the multiple variables available. Shop our wide selection of stock and custom floor trusses to complete your building project available in a variety of styles and sizes to fit your needs. Structural support usually a beam wall or post that is designed by the building designer to carry the truss reaction loads to the foundation. Dimensional lumber floor joists 2 x 8 2 x 10 and 2 x 12 construction lumber was the popular choice for floor joists before floor trusses and i joists were developed.

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. And parallel to floor truss span strongback lateral supports 24 max. A metal plate connected wood truss is a roof or floor truss whose wood members are connected with metal connector plates.