Ko te whakakikorua o te kounga teitei ka tohua hei rauemi mata, ka kani tika te papa, he papatahi te mata, he pakari te hanganga o te hanganga.Ka whakanuia e te plywood te whakanekeneke teitei o te elasticity me te kaha piko.Ka whakamahia te kapia DYNEA phenolic hei whakapiri, hei whakarato i te wai me te makuku, e pai ana mo nga taiao o waho.