The stone laying techniques used in the construction of Nakagusuku Castle can be divided into 3 categories: the Nozura technique (Rubble masonry), the Nunozumi technique (Ashlar masonry) and Aikata Tsumi technique (Ashlar masonry).
Stones that have not been processed. Natural stones and rocks are simply laid on each other.
Cubical stones are laid in such an order that each layer presents the same height.
Big stones are a must because they make the wall very solid. This technique has been used to make the parts that surround the castle gates.
With this technique, stones are processed into different shapes in order to fit into each other. Because of this process, the wall remains solid and will last for a longer period of time. This technique can be seen at the north enclosure and the three enclosures which are thought to have been constructed by Lord Gosamaru .