Four-line handwriting paper: the standard measurements
Three equal bands, about 4mm each and 12mm total — the usual size for primary-school English books. Lower-case letters occupy specific bands.
The measurements
Four horizontal lines create three equal bands. Primary exercise books commonly total 12mm (4mm per band); larger 15mm versions exist for the earliest years.
Which band each letter uses
x-height letters (a c e m n o r s u v w x z) sit in the middle band only.
Ascenders (b d h k l t) occupy the middle and top bands; descenders (g j p q y) the middle and bottom. Capitals take the top two bands.
