JJI Design is the new design software platform created by James Jones' Timber Systems Division to make using, specifying and designing with JJI-Joists even faster and easier.

To support all registered JJI Design users we have created our own online Knowledge Base.

Knowledge Base is a library of walk through videos, useful documents and information and FAQs, and Knowledge Base is only available to registered JJI Design users.

If you are a registered user of JJI Design and would like access to our Knowledge Base please email jjidesign@jamesjones.co.uk to request registration and access details.

We have also set up a special helpline number for all JJI Design software users, just call 01309 671776 to speak to one of our support team about any aspect of JJI Design.

JJI-Joist Technical Manual Fifth Edition(5.99 MB)

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