What is a timber I-Joist?
These are purposely engineered to be light and strong, whilst removing the imperfections which can come from natural timbers.
The name comes from the shape. There is a top and bottom flange element with the web in between.
Their common application is within residential floors, roofs and are becoming increasingly popular with their benefits over solid timber joists. Such benefits include the ease of handling due to their light weight, less prone to warping and ease of drilling to install services such as pipes and cables.
What is a metal web joist?
A metal web joist is a combination of timber chords and pressed metal webs, which form an open web joist. The open web allows for installations of services like pipes and cables to pass through the metal webs without the need for cutting holes within the joist.
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