Full wall · 79 m
1,541 bags
118.5 m² wall face
79 × 1.5 × 13 = 1,540.5790 composite posts
79 ÷ 0.1 = 790 postsBuilding the island…
The island tip
79 m wall · 20 m trialPhase 1 · Trial rework
20 m clockwise from the inland path return, past the rocks.
79 m total · 59 m remainingExisting timber, including the collapsed path return.
Bags: wall length × 1.5 m height × 13 bags/m²
Selected edge option: Continuous composite posts
Trial only · 20 m
390 bags
30 m² wall face
20 × 1.5 × 13 = 390200 composite posts
20 ÷ 0.1 = 200 postsBrown composite posts, 100 mm diameter × 1.2 m long, with chamfered tops 200 mm above the bags. A continuous row behind the bags, touching side by side: 10 posts per metre.
Edge options are alternatives. Quantities are rounded up to whole items; the 20 m trial is included in the full-wall totals.
Path edge and rock shoreline
The concrete path meets the collapsed timber wall beside the shoreline rocks.
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