"Peter James" wrote in message
.. .
I want to build a raised vegetable bed. I have metres 1.80 x cm80 space
available.

I've used 6 inch wide gravel board to make raised beds. Each side's two
pieces nailed to 3 X 3 X 12 inch pieces of fence posts. At the corners I
used 3 inch coach screws (pre-drill the wood) on the narrow ends to hold the
thing together. I used bitumen paint on the inside (two coats) to cut down
on water loss from the soil. If possible move the soil around the bed to
fill it and replace with gravel chippings.

My runner beans are in a 4 X 8 ft X 12 inch raised bed and I've used a leaky
hose connected to a water butt to keep them going. I picked a load
yesterday and there's still more coming on.

Geoff