EatYourGarden:
1 - The corners are screwed together with 40mm wood screws
EatYourGarden:
2 - A brass 'elbow joint' added to the inside corners for extra strength.
EatYourGarden:
3 - The wood is standard 20mm pine planks.
EatYourGarden:
4 - The box is 20cm deep (about 8inches) which is a bit deeper than the standard 6inches for SFG
EatYourGarden:
5 - The grid was made from 44mmx10mm pine and screwed to the top of the box.
EatYourGarden:
6 - And there we have the finished product - Looks good doesn't it?