The arena is still in the planning stage but is planned as 40 ft square 40 mm thick plywood on a solid base.
It will have side walls using railway sleepers starting below floor level.
Above those will be 60 cm high heavy planking, both layers fixed to the flooring solid base.
I am hoping for polycarb walls as well but these are not confirmed.
If no polycarb then I will use 8 ft high Harris steel mesh fencing, the same as is used around building sites. This will be set back 2 metres from the arena edge the same as the last 3 years.
I will post further info as soon as I get it.