Kalōk joñan joñan juon ial in wanlōñtak

Kalōk in juon spiral staircase

Jouj im kwalok joñan ko rej aikuji

H - Utiej in stair
D1 - O.D.
D2 - Diameter eo ilowaan
C - Oran step ko
Z - joñan mōttan step
A - joñan an oktak stair

ñan bōk melele

joñan depakpak in step ko ilo spiral staircases ko ren jab diiklok jen 80 cm.
Depakpak in step eo ilo mōttan eo ikōtaan ej aikuj in 20-25 cm, ilo mōttan eo elaptata - jab laplok jen 40 cm. Utiej in step ko an juon spiral staircase emaron in laplok jen joñan utiej eo kar kōmmane ñan marching stairs ko. joñan utiej in step ko ñan etetal ej 16 cm, ñan step ko rej spiral - 18 cm.

Ilo jikin eo neen ej etal ie, joñan an spiral staircase eo ej aikuj in 25-30 cm, ilo tōrerein - 30-35 cm. Depth in step in enaj lukkun emman.

Joñan step ko an spiral staircases ko.

h - joñan depakpak in bun̄tōn eo
W1 - depakpak in step eo ilo mõttan eo elap
W2 - step blank width
α - kōmman step angle