What Is A Floor Truss

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.

What is a floor truss.

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. Truss members form a series of equilateral triangles alternating up and down. Roof floor truss manual 7 31 08 10 43 am page 12. This reduces the need for interior bearing and provides space for hvac plumbing and electrical systems within the floor panels our custom designed floor truss systems reduce the amount of bounce that can be found in conventionally framed floor joist systems.

Inclined or horizontal member that establishes the bottom of a truss usually carrying combined tension and bending stresses. Floor truss span chart each individual floor truss design is unique based on multiple variables. Span tables below illustrate common combinations of the multiple variables available. Floor trusses are able to span farther than dimensional lumber and even i joists.

Truss systems of this type usually go beyond the simple floor joists that are common to all types of floors. It is often used for floor construction. 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. Both floor trusses and floor joist systems provide suitable structural support.

A preassembled unit of floor joists subflooring. A floor truss is a system of support that helps to keep floors level and sturdy. Plated floor trusses are very heavy present a handling danger because of sharp plate edges and plates often interfere with the installation of mechanicals. Elements that make a floor truss.

Because they are manufactured off site according to the specifications of the project the need for alterations is almost completely eliminated. A metal plate connected wood truss is a roof or floor truss whose wood members are connected with metal connector plates. 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. Floor trusses though are an economical alternative to joists.

Structural support usually a beam wall or post that is designed by the building designer to carry the truss reaction loads to the foundation. Geometry loading spacing bearing conditions etc. Steel is also a non renewable resource manufactured with great energy consumption.