Ko ngā karu para kua whakaritea ki ngā rahi kōpiko katoa he taputapu whakamahinga anuanu hoki, e hui ana i ngā karu para e takoto kōtui ana ki runga i tētahi pūtake, ā, e wātea ana i te rohe nui o ngā kōpiko hei whakauru ki ngā tauira maha o te mahi rawa. Ko ngā karu para, e hangaia tikangia ana i te kakahu, pepa, te papanga rānei e totohu ai ngā para, kei te taraweti ki te ara irirangi, ka taea ai te whakapā tahi tonu me te mata o te wāhanga e whakarewa ana. Ko te wātea o ngā rahi kōpiko – mai i te kauta (24-80) hei tango i te nui rawa atu o te rawa, me te horoi i ngā tapa, ki te waikawa (120-240) hei reri i te mata, hei whakapapa rānei, ki te waikawa (320-600) hei whakaimi i ngā tapa, me te whakauru anō hoki ki te waikawa rawa (800+) hei whakamaroke – ka taea ai e ēnei karu para te whakamahi i ngā wāhi maha i roto i ngā umanga penei i te hanga metara, te whakarewa rakau, me te whakaputa i ngā taonga paraihe. I te hanga metara, ko ngā karu para kauta hei tango i ngā pakanga, ngā pāpaku, me ngā kiriata metara, ke while ko ngā kōpiko waikawa me te waikawa hei whakaimi i ngā tapa, hei reri i te mata mō te paina, te whakapiapia rānei, me te eke atu ki te mutunga kotahi. I te whakarewa rakau, ko ngā tapa e taea ai te āhua o ngā mata pōkai, ngā āhua, me ngā korero tino uaua ki te tāimiro me te whakamahi i ngā kōpiko waikawa hei reri i te rakau mō te whakapai, te whakapai rānei. Kei te āhua ake o ngā karu para te āhua o te wehe i te wera, ka iti ake te mōrearea o te rawa e maripi ana, e whakaputa whetewhete ana, a ko te mahi whakamauru ake – arā, ko ngā karu para kua whakamahia kua whakakapihia e ngā kātata hou i te karu e huri ana – ka tūtohu i te mahi tahi tonu i te roa o te ora. Ka taea te whakamahi i ngā karu para ki ngā taputapu ringaringa, ngā karu whirikōkiri, te tāone rānei, ka tuku i te whirinakitanga ki te ringa me te whakamahi anō hoki. He iti noa te whakamahi i te horoi, te whakauru, te mutunga rānei, te whakamaroke rānei, ko ngā karu para ki ngā rahi kōpiko e tuku ana i te whakautu utu iti, e tika ana kia eke atu ki te mutunga o te kounga teitei ki ngā rawa katoa.