As a result, we came up with extruded equilateral triangles with a sac to hald earth & plants.
These modules are stackable, moveable, made from cheap timber, screws, PVC and elastic bands.
They can be used as planters, but also as bar tables and stools.
If you have a pallet at home, the timber can easily be substituted for pallet wood (one side is 60cm, a europallet is 120*80cm).
WHAT DO YOU NEED FOR 1 MODULE?
3 Wooden planks 18*93 mm
PVC pipe diam 32mm, 1m
WHAT DO YOU NEED FOR THE GARDENING BAG
-Wood saw (hand, band or circular saw are all good)
Chisel or grater
Brush or paint roller
Drill incl. philipshead bit & drills (diam. 4mm (predrilling) and 10mm) (preferable cordless > screwing)
Sanding paper (for example grades 120-220-600)
Check out this instructable for knowing how to make the gardening sack.
Step 1: Sawing & drilling
Drill with a small drillbit first (for example 4mm), then from the front with a 10mm bit. This should fit 2 pieces of elastic band. Placing a leftover piece of wood underneath while drilling greatly reduces splintering at the end.