He warou whakamaarama maamaa ka taea te whakamahi me te hiko hiko; he pai mo nga mahi tawhiti poto, auau, me te kaha; he ngawari ki te whakahaere, ka penapena te wa me te whakapau kaha, he haumaru, he pono; Ko te roa o te cantilever me te teitei o te pou ka taea te whakarite kia rite ki nga tikanga mahi rereke.