Muab xam los ntawm ladders rau peb spans thiab landings du

rab teev tsuas qhov yog nqus 1:

Qhia kom meej rau qhov ntev hauv millimetres

Aperture siab Y
Aperture ntev X
Dav ntawm stairs E
Theem A
Theem B
Theem C
Thickness ntawm cov kauj ruam Z
Qhia cov kauj ruam ntug F

Sab saum toj theem hauv qab hauv pem teb 2 cov pem teb SP

Kev hloov ntawm qhov muab rov qab LR

nyob rau hauv cov xim
dub thiab dawb qho

xam nyob rau hauv lub qhov rais tshiab

Muab xam los ntawm ladders rau peb spans thiab landings du

Sau rau qhov ntev yuav tsum nyob rau hauv millimetres staircase rau ob pem teb

X - aperture dav ntawm stairs
Y - Aperture siab
E - Dav ntawm stairs
F - Cov kauj ruam qhia
Z - Thickness ntawm cov kauj ruam

A - Cov kauj ruam hauv lub bowstring sab sauv
B - Nruab nrab cov kauj ruam ib bowstring
C - kaw cov treads hauv qab

SP - Seb lub chaw ntawm cov thawj teeb relative to txog qib uas hauv pem teb hauv pem teb ob.
Thawj li cov theem sab sauv nyob rau hauv pem teb rau hauv pem teb muaj ob theem.
Nyob rau hauv lub qhov rooj thib ob, hauv pem teb rau hauv pem teb thib ob yog cov kauj ruam dhau. Rau qhov siab ntawm qhov stairs yuav raug proportionally txo

Tau cov kev pab laij rau qhov siab thiab dav ntawm cov kauj ruam, lub kaum sab xis, thiab lub qhov ntev ntawm cov hlua sab sauv, nruab nrab thiab sab.
Cov kev pom kab ntsab stairs hloov cov kauj ruam.
Koj yuav ua kom muaj ib tug dub thiab dawb los dawb lias qho.

Stair dav yog tus dav of the stairs uas swinging site.