Internal rubber lining with thick plywood, not less. 6 mm. cover with wooden laminate Wooden structures must be free of moisture blamed for footprint . There are no cracks and crooked.
Paneled inside with plywood thickness not less than 6 mm. Closing slash. , with wood laminate Wooden structure, and is free from defects. humidity, no cracks and crooked
The dungeon inside with plywood thickness not less than 6 Rubber mm. Cover with laminated wood Wooden structure without flaws and moisture, no cracks, and bent