Space Joist

Space Joist

A popular open web floor system, SpaceJoist will give your project the competitive edge with marked savings in time & money.

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Quick Guide



Open web Design Fast and simple installation of services, without the need for drilling notching.
Longer spans Longer spans are achievable in comparison to solid timber. This may eliminate the need to intermediate load bearing internal walls, thus reducing a building's overall cost.
Design Flexiblity A number of end conditions are available to the designer, including top chord supported. Spacejoist 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.
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 & ceiling application is simpler & 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. Alpine's design software can create SpaceJoist designs to a variety of specifications.

Useful Links:

Alpine Open Web Joist Manual

Quick links to certain pages of technical guide:

Typical open web joist layout floor:

Space Joist

Stock availability:

All sizes manufactured to order.