Isitepsi I-UVine spiral staircase yenziwa ngokudibanisa iiprofayili zebhokisi yeU kunye no-V ngendlela yokutshintsha. Ngale ndlela, izitebhisi ziyazixhasa kuba azidingi sibali senkxaso okanye umjikelezo wecala. Ngobume bayo bokumodareyitha kunye nokusebenza ngokudibeneyo, uyilo luzisa ulwandiso kuyo yonke imveliso, ukupakisha, ukuthutha kunye nofakelo.