B0 - measures 40" x 58" consisting of 2
'B1' sheets.
B1 - measures 29" x 40" . Most often this is
a double size version of the B2 which would make it
vertical, but sometimes it is presented horizontal
with different artwork.
B2 - measures 20" x 29" and is the base size
for most Japanese posters.
B3 - Nakazuri - (which means 'hanging inside') measures
14" x 20" about half the 'B2' used inside
bus and train stations. Very similar to a mini
sheet
B4 - measures 10"
x 29" which is half the size vertically of the
B2 poster and half BOTH ways of the STB. Sometimes
called a Japanese insert or 'speed' poster.
B5 - Chirashi - a small promo poster similar to a herald or a
flyer. Their measurements vary but the majority are
about 7" x 10". These are quite often printed
with information on the back.
STB - measures 20" x 58" which consists of 2
sheets of 'B2' posters over and under. These are sometimes
called 'Tatekan' posters
