Fence House Roof Truss Company

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SpaceJoists are engineered floor joists that use a ground-breaking system  – combining open web steel and timber – to produce super-light beams with excellent structural integrity.

Fencehouse Roof Truss Company uses ITW SpaceJoist  for all floor applications. Manufactured using parallel, stress-graded timbers, joined together by V-shaped galvanised steel webs, SpaceJoists bring together the strength of steel with the lightness of wood. This produces a system which is lighter than an all-steel equivalent, has a cleverly built-in access for services, and overall, performs much better than traditional all-timber joists.

Fencehouse Roof Truss Company uses ITW design software to create made-to-measure SpaceJoists. Manufactured in our factory, your joists arrive on-site and ready to install, reducing wastage, removing the need for alterations and saving on fitting time. Available in a range of depths from 195mm to 424mm, Fencehouse Roof Truss Company’s SpaceJoist products are available in longer spans in comparison to solid timber, removing the need for intermediate load-bearing internal walls, and reducing a building’s overall cost.



What they do

A joist is one of the horizontal supporting members that run between walls, foundations or beams to support a floor or ceiling. SpaceJoists use a metal web joist system, combining parallel, stress-graded timber flanges and engineered galvanised steel webs, that give strength, durability and offer value for money.

What are the benefits

SpaceJoists simplify construction with the following features:

  • Open web design – allows for a quick and easy installation of services, removing the need for drilling or notching; therefore significantly reducing common errors that incur costly remedial work
  • Lightweight system –  reduces installation time by up to 50%. Site handling is safe and easy, and the need for specialist lifting equipment is removed in most cases
  • Long spans – eliminates the need for intermediate load bearing internal walls, reducing overall costs
  • Design flexibility – SpaceJoists can be designed to precisely locate bearing walls and accommodate larger services
  • Reduced site wastage – Off-site design removes the need for on-site alterations, reducing the amount of waste timber generated on-site
  • Wide spacing – labour time is reduced as fewer joists are required to complete a floor installation in comparison to solid timber.


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