Diagonal bracing min 19x89mm nailed to each joist with min 2 x 3.75x50mm nails.

1.2m.

Longitudinal bracing min 19x89mm nailed to each joist with min 2 x 3.75x50mm nails.

2.4m max.

Temporary stability blocking min 38x125mm or full depth Finnjoist nailed to each end with min 2 x 3.75x50mm nails.