Ko te Pouaka Gabion he ipu waea i hangaia i te kupenga waea hexagonal te aho waea paiherea ranei. He rerekee te diameter o te waea me nga haurangi hexagonal. Mo te miihini waea hexagonal kaore he paninga pvc, ko te diameter waea kei te 2.0mm ki te 4.0mm. Mo era PVC he panui waea hexagonal waea kupenga, ko te diameter o waho mai i te 3.0mm ki te 4.0mm. Ko te waea o te taha anga o waho tetahi o te mehua waea he rahi ake i te waea whakamahia mo te kupenga waea hexagonal.