The principle
Footings and cure time are non-negotiable. Posts set 600 mm deep, fittings torqued and thread-locked, and cast concrete left the full 28 days — green concrete shatters under a first lift.
Materials
- 5 woven-PP duffel sacks
- inner contractor bags
- dry sand
- pea gravel
- charred pallet rack
Tools
- Scale
- funnel
- cable ties
- scissors
Reclaimed from
Agricultural co-op + construction yard + site pallets