wrote in message
oups.com...
We've got a small paved area in front of our house , 12 feet by 8 feet
approx, with a 2.5 foot high rendered wall on the outside. It's a bit
dull so we want to put some planters along just inside the wall and put
some flower pots etc randomly in the remaining area.
snip.
What sort of wood , that's easily obtainable and relatively cheap could
I use?

Plywood may be the cheapest -and it looks much better with a solid timber
trim to hide any endgrain.
Maybe you could track down some off-cuts from a timber supplier as these are
always cheap/free.