Échelle à plateforme

30-7/8 in 1 31-5/8 po 1 18-1/4 po 1 19 po 1 23-3/16 po 1 24 po 1 24-4/5 po 1 27-3/4 po 1 29-1/4 po 1 32-3/8 in 1 33-4/5 po 1 36-4/5 po 1

147 in 1 216 in 1 7,58 pi 1