JJI-JOISTS TECHNICAL MANUAL
changes to Building Regulations, NHBC Standards etc. For the most up-to-date information please visit our website: www.jamesjones.co.uk Contents Section 1 The JJI-Joist system Section 4 ... Extra Timber Requirements Type Material Size Len Qty Perimeter Nogging CLS 38x38 233 2 Perimeter Nogging CLS 38x38 290 1
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