Te hanga rori i roto i ngā kāwai karoro hei whakamahia, e whakaaetanga ana te whiuwhiutanga tuhinga me te mōhiotanga mahi. Ko ngā taumata matua e pa ana ki ngā rori 3mm-tou e āhei ana ki te tūpato me te whakarite ki te 350HB pūmanawa, e taea ana e ia te tahuri i te take haehae 8,000 kg/m². Mō ngā momo ekitikiti, pērā i a Futian Auman, ka tino whakaaetanga te rori kotiate-komihana e huringa ana i te mana rawa e 40% nei, ahakoa te wehewehe o te mana here (6,500 kg/m²). Ko te kauwhau o te rori i whakatakotoa ki te kaiwhakatika nona polyurea (R11 slip rating), e āhei ana ki te whakahoki i te waiwai, ngā whakapūtaenga, me ngā whakawherowhero, me ngā tauira tītaha tītaha (100mm) e whakauru ana i ngā here whenua. Ki runga i ngā momo whakaritarita, ko te rori 50mm i whakatakotoria ai ki te porohita i roto i te komihana poliurethane, e whakatakoto ana ki te ara kuhuwhenua. I raro, ko ngā kauwhau whakapiki mai i te rawa tino rangatira (yield strength ≥ 550MPa), e whakarite ana i waenganui o ngā take haere. Mō ngā whakaritenga rori tūhononga—pērā i ngā rori kotiate-rawa moe noa iho rānei, rānei ko ngā kawe inoi inoi mō ngā tono kai—me pānuitia ō matua whakaaturanga mo ngā tohutohu tūmatanui me ngā kaiwhakauru.