Hi BB
I haven't taken it down to dirt, but I would say I got 20-25mm to fill in the depest spots, and the thatch was only from the tree to the shed the rest is fairly new growth that I encouraged to run from the thatch stuff.
I would say 8x8m, I have ordered about 1.5m3, if it needs more I will get another lot. It should be delivered today so will see if I got enough, and asses it is as I go.
B_S
