JJI-Joists
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More and more designers, specifiers and building contractors are incorporating JJI-Joists into their designs as JJI-Joists tick all of these boxes – and more.
JJI-Joists, from James Jones & Sons Ltd, were the first timber I-Joist to be manufactured in the UK, entering the market in 1999. Since then, as timber I-Joists have gained in popularity, the JJI-Joist has become the clear market leader, with an estimated 45% market share.
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