The JJI-Joist
You can count on it to reduce
your carbon impact.
JJI-Joists are the UK’s market-leading I-Joist and the brand most specified
by architects. Since 1999 over 45 million linear metres of JJI-Joists have
been supplied to the UK construction industry, where they are the only
UK manufactured I-Joist with FSC Certification.
Now, thanks to James Jones’ independently validated carbon &W