In the place where the leg begins, step spiral staircase to be about 25-30 cm, on the edge - not less than 30-35 cm. The depth level is quite convenient.
Katika mahali ambapo mguu wa kuanza, hatua ond staircase kuwa juu ya 25-30 cm, makali - si chini ya 30-35 cm Ngazi ya kina ni urahisi kabisa.