Lattice Floor Joists

Spans of over 40 metres are achievable and our lattice beams span without the need for intermediate support columns.

Lattice floor joists.

You can expect unrivalled performance from minimal material usage with fewer webs required and up to 20 less timber used. Long spans of joists in newer homes may wobble or bounce from foot traffic. Floor joists installed on second or third or higher levels double as ceiling joists for the level below. In addition to the many benefits that our long span lattice beams offer a typical lattice beam can weigh up to 50 less than its hot rolled counterpart and yet still achieve long spans.

We have completed a wide range of mezzanine floor projects using long span lattice joists designed to carry storage loadings. Search all products brands and retailers of lattice joists for reinforced concrete floor slabs. How to make floor joists stronger. A great alternative to standard carcassing joists and i beams.

Discover prices catalogues and new features. In the past 2x4s or 2x6s were sometimes used as floor joists. If you require any further information or you would like to discuss your floor beams requirements in more detail please do get in touch. Developed a decade ago initially as a total floor solution the easi joist system offers excellent versatility when designing floors roofs or walls.

True floor joist span calculations can only be made by a structural engineer or contractor. However it has benefits in the speed of manufacture and ease of installation. The lattice joists are a cost effective way of spanning larger areas and the truss depth can be varied to achieve different spans and can be produced on a just in time basis the amount of steel used to construct a lattice floor joist only marginally increases as the depth of the joist becomes greater. This size is no longer acceptable when framing a structure.

Lattice joists for reinforced concrete floor slabs. After several centuries of service floor joists in older homes may sag or crack. Compared to the lattice truss floors the frama joist system uses a similar amount of steel and has similar spans. The following table gives details of allowable spans and spacing between joists for the most common timber sizes used in floor construction.

All the figures are based on normal domestic floor loadings where the floor construction is typically 18 25mm floor boards sheets with up to 12 5mm thick plasterboard and skim underneath. This sample table gives minimum floor joist sizes for joists spaced at 16 inches and 24 inches on center o c for 2 grade lumber with 10 pounds per square foot of dead load and 40 pounds of live load which is typical of normal residential construction.