The fireplace at the entrance is made of colored marble from Gifu prefecture, which is famous for its marble production. The steel shutters of Akarenga Museum were made in Japan in the middle of the Meiji period. Every slat is a 6.5cm wide, 3mm thick strip of steel connected together as in armor, presenting a unique Japanese shutter. All 70 windows of the building large and small have shutters with steel handles that are still operational.
Vey valuable zelkova tree boards were used for the door to the guest room. In addition, cinnamon tree, Japanese cedar (sugi), Japanese cypress and black persimmon lagging materials were used.