We will be putting a damp proof liner on top of the bricks, before the timber goes on top.
The timber arrived in 2.4m lengths, 20cm X 10cm, and was left to dry out in the garage, for a week or so to allow it to dry out ready for cutting.
I wanted to have around 1500 ltrs of water in the pond, so ended up working back from there, and after a few reworks of the calculation, ended up on a pond size of 1.9m long, by 1.4m wide and 75cm deep, allowing for the wide of the wood (10cm), giving an internal diameters of 1.7m X 1.2m X 75cm, which worked out to 1530 ltrs, which was well with the pump and filters capacity.
The timber was then cut to length, and dry stacked, ready from r assemble and bolting.
All very exciting, really feels like the pond is finally starting to come together.