After having an idea of likely costs from local companies, I was looking at £150 per square metre and that included me doing the sub base to prepare! Then I came across Sudwell and went for it paying £1500 or so which would I estimated work out at approx. £50 psqm. I am not a builder however and there was a risk that it could all go belly-up if my DIY skills let me down. The instruction were very clear - follow them and you cannot go wrong. I hired a powerful double-handled paddle mixer - small drills will burn out quickly - and off I went with some help from the mrs. I did 10m at the side of the house and couldn’t be happier with the whole process. When the weather improves I will crack on with the other pathways in the garden. I would recommend to anyone without hesitation!