When determining a span, NZS 3604:2011 Timber-framed buildings Figure 1.3 (F) indicates it is measured between joists, while Figure 1.3 (G) shows centre to centre. Which one should be used? The definitions section of the standard refers to the support span being the clear distance between supporting members measured horizontally so this is what BRANZ believes should be used.
Determining spans from NZS 3604:2011
21 March 2014
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Published in building.