Mā te hanganga e mau ana i te reera gantry ka taea e te pane whakarewa te kapi i tētahi wāhi mahi nui. Mā te pūnaha reera raina ka taea te neke maeneene me te tika mō ngā mahi whakarewa tuitui-roa. He pai mō te whakarewa i ngā wāhanga mahi nui me te taumaha pērā i te maitai hanganga me ngā kurupae. Mā te hoahoa o runga ka āwhina i te penapena wāhi papa me te whakawhānui ake i te whānuitanga mahi a te karetao. Mā te hononga maha-tuaka ka āwhina i te whakatutuki i ngā ara whakarewa uaua i runga i ngā wāhanga nui. Mā te mana nekehanga tino tika ka āwhina i te whakarite i te kounga whakarewa ōrite i ngā tuitui roa.
Ka taea te whakauru i ngā rama whakarewa rerekē ki te pūnaha mō ngā tukanga rerekē. He whānuitia te whakamahinga i roto i ngā mīhini taumaha, te hanga kaipuke, me ngā ahumahi hanganga maitai. He pakari pai te hanganga gantry, e tautoko ana i te mahi pumau i te wā e whakarewa ana. Ka taea e te karetao te toro atu ki ngā tawhiti roa e kore e taea e ngā ringa karetao turanga-pūmau te hipoki. Ka tautoko te pūnaha i te whakarewa tonu hei whakapai ake i te pai o te whakaputa mō ngā wāhanga nui.