90° wngwi stairs ni lekhamung

ni turn bai stairs ni lekhamung°

Khapang srangwi nangmani kotor kotor phunukdi milimitar o

X - staircase ni kholokma kotorma
Y - Puilani nokni ha saka ni simi tei kaisa nok ni ha saka jora
E - Stair ni kotorma
F - Step ni swkang
Z - Step ni kwrakma

C - bebak stage ni mung
P - Step ni mung + khelaima jaga

Turning stairs ni hisab wngmani abo straight stairs ni hisab wngmani slai kisa kheno wngkha.
Stair ni kwchangma ni lekhamung no step ni kotorma no twiwi formula bai lekhajak.
Khoroksa borokni stride ni rangchak 60 ni simi 66 cm jora, aboni bisingo 63 cm jora wngnai.
Kaisa kwchangma thakya formula bai baksa: 2 yakchu kotorma + yak kwrakma = 63±3 cm.

Stairs ni jotoni slai kwrwngma wngkha 30° ni simi 40° jora.
Stairs ni step ni kwrakma 45 size ni simi wngna nangnai - 28-30 cm ni slai kwbang wngya.
Depth kwrwi wngmani abo step ni protrusion bai wngwi mano.
Step ni rangchak 20-25 cm jora wngna nangnai.

Platform ni kotorma no swlaiwi nwng kaisa swlaijak stairs ni kwchangma nobo manwi mano.

Program o kotor angle tei kotorma bai khe kaisa swlaijak stairs ni mwkhang swnamnai.
Drawing o step ni general rangchak, step ni sakao string ni markings, step ni corner tei step ni main rangchak no phunukjak.