Reihys staaraghyn er bowstringyn

Reihys jeh tommanyn staircase coodaghey lesh bowstrings

Soilshaghey magh ny tommanyn ry-hoi ayns millimeteryn

X - fad fosley staircase
Y - Ard staar.
Z - Leed staar.
C - Lhiasaghey ny steatyn
W - Thie y steep
F - Overhang jeh steepyn
T - thie bow ny stringer
H - Show riseryn
LR - stiagh ny staartyn
SP - stayd y chied cheu co-cheangailt rish level y lhooar jeh'n daa lhooar


Cooidjagh y phrogram.

Reihys jeh skeeal ymmyrchagh staircase cowrey er bowstrings.
Determination y mhean jeh ny studeyryn.
Dimensionyn exact jeh ooilley ny partyn.
Taarnyssyn as diagrammyn mishaghey jeh ooilley ny staircase.
Mollaghtyn son y stayd stairs.

Ta'n rieughid jeh'n choshrey stair er ny rieughid liorish formula er y steep length.
Ta stride y dooinney ry-akin eddyr 60 as 66 cm, as 63 cm er y chooid smoo.
Ta staircase cosoylagh cordail rish y foirmle: 2 ardjyn step + Doigh step = 63±3 cm.

Yn staaraghyn s'cosoylagh t'ayn, she 30° gys 40°.
Ta'n doigh steep y stairs dy row correspondaghey rish 45 - cha nee less na 28-30 cm.
Ta'n aght dy dowin ry-gheddyn liorish y protrusion jeh'n steep.
Ta'n steep ry-hoi 20-25 cm.