Structopedia
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Inputs

Timber Grade
Roof Type
This grade has a single table applicable to both Sheet and Tile roof — results are the same regardless of roof type selection.
Batten Spacing (mm)

Maximum Batten Span & Overhang

AS 1684.2 Table 32 — Wind classification N1/N2

Size (D×B mm)Max Span (mm)Max Overhang (mm)
Select inputs above

Design Reference

Figure 7.30 — Roof battens design parameters
Figure 7.30 — Roof battens (AS 1684.2:2021)

Notes (AS 1684.2 Table 32):

i) Battens are not suitable for the support of construction loads prior to fixing of the roof cladding.

ii) The roof batten sizes accommodate local wind pressure effects that occur near edges of roofs.

iii) Allowable spans and overhangs are based on a maximum Sheet Roof Mass of 10 kg/m² and Tile Roof Mass of 60 kg/m². Overhangs shall not exceed 50% of actual backspan.

iv) Wind classification N1/N2 only.