Concrete shuttering ply, seal the crap out of the exposed edges and it'll last forever... You might be able to pick some up second hand if you're lucky... Your big problem is still the uprights, Max's offer is a pretty good one if the price is right... You could build in some rings to hold a pole for the nets...
Concrete shuttering ply, seal the crap out of the exposed edges and it'll last forever... You might be able to pick some up second hand if you're lucky... Your big problem is still the uprights, Max's offer is a pretty good one if the price is right... You could build in some rings to hold a pole for the nets...