It has a tongue and groove profile on the 2 long edges and is laid the same way as 38 mm chipboard. However, due to only being 30 mm thick, EGGER OSB HDX is around 20% lighter, despite being wider than the typical chipboard panel (675 mm as opposed to the usual 600 mm).
A lighter, wider board means that it is easier to manoeuvre and quicker to lay.
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