Open Web Floor Joists Residential

Since then this design solution for architects and engineers has evolved to support large floor areas and large roof spaces of up to and over 100 feet wide.

Open web floor joists residential. The re engineering of the wooden floor joist that. No more custom made floor trusses. Open web steel joists are relatively light in weight fabricated in a shop setting and have a trussed web. The open web nature of the trimjoist is ideal for plumbing electrical find out more about load opening charts and requirements for the trimjoist floor truss system.

Common sense tells you that large floor joists can carry more load and spacing joists closer together also increases the load bearing capacity of a floor. Floor joist spacing for i joist and 19 2 spacing for open web because the floor plywood tends to get bouncy. Floor trusses can span farther between bearing points than i joists allowing for larger open rooms. As the name trimjoist indicates our product can be trimmed on the construction site for a custom fit.

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. Floor trusses have built in openings which can be used to install hvac ductwork plumbing lines and electrical wiring. Other than the floor stiffness i would not recommend going more than 16 o c. In the late 1950 s redbuilt s founders invented an innovative composite steel and engineered wood open web truss.

In addition it is light and easy to install and its open web construction allows you to pass pipes and wiring through without affecting the joist s integrity. Our open joist system the strength of the triangulation the accuracy of multiple joints optimizing the use of wood in a responsible manner and adjustment flexibility to the site makes the triforce open joist the only floor open joist and adjustable made entirely of wood and assembled without a metal connector. The reason open web can be spaced closer is that it usually has a wider top bottom chord. The k series joist web is a single bent bar running zig zag between top and bottom chords.

This also reduces the need and cost for extra bearing posts beams and footings. The extra two inches of vertical distance when a floor is framed with 2 x 10 joists rather than 2 x 12s can be quite important for example. Lh and dlh joists have heavier chords and web members for heavier loads and longer spans. Triforce open joist has been evaluated for equivalent fire resistant construction to dimensional lumber or structural composite lumber equal to or greater than 2 inch by 10 inch nominal dimension in accordance with exception 4 of section r302 13 of the 2015 2018 international residential code irc.