Also called Spacejoists, were introduced more than 10 years ago and are now increasingly speciﬁed by Architects and Builders for the construction of ﬂoors and roofs. Their composite design of timber and steel, forms an ‘open-web’ structure, giving a lightweight timber frame with the reinforced strength of a steel structure.
A ﬂexible solution that is easy to install, easy to modify internal building layouts, and allow easy installation of services such as: ventilation and air con ducting, heat recycling systems, electrical wiring and water pipes; without labour intensive drilling and cutting through joists.
They have a far better reduction of noise transmission and are less likely to warp than conventional joists.
Open Web Floor Joist Manual Download
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The SpaceJoist open web joist system for floor and roof applications comprises of timber chords with steel “V” webs and timber vertical webs. Combining the best features of I-joists together with an open web construction, SpaceJoist delivers a quality product for maximum job site efficiency and overall cost effectiveness.
Features and Benefits
Open web design – Fast and simple installation of services, without the need for drilling or notching.
Longer spans – Longer spans are achievable in comparison to solid timber. This may eliminate the need for intermediate load bearing internal walls, thus reducing a building’s overall cost.
Design flexibility – A number of end conditions are available to the designer, including top chord supported. SpaceJoists can be designed for precisely locating bearing walls and accommodating large services.
Reduced site wastage – Bespoke design eliminates the need for site alterations. SpaceJoist also saves timber resources by reducing the amount of waste timber generated during construction.
Wider spacing – Fewer joists are required to complete a floor installation, reducing labour time.
Light weight – The light weight construction allows the joists to be manoeuvred easily and safely on site, often without the need for specialist lifting equipment.
Wide nailing surface – Floor and ceiling application is simpler and quicker.
Save money – Trades work faster on site, reducing labour costs. The necessity for intermediate load bearing walls is also reduced.
Engineered – SpaceJoist is manufactured off-site ensuring consistent quality and reliability. We are able to design SpaceJoist floors to a variety of specifications.