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Torah Scroll Proportions and Measurements

"Its height not exceeding its circumference" — the rule that sets the scroll's size, and with it the case.

The rule "A Torah scroll should not be made with its height greater than its circumference, nor its circumference greater than its height" (Mishneh Torah 9:1). On g'vil the height is six handbreadths — twenty-four thumb-breadths; on k'laf it may be more or less, provided height equals circumference.

Why it is practical Circumference depends on parchment thickness, letter size and the number of columns. Two scrolls of the same height can differ in girth. Case dimensions are therefore derived from the scroll — not the other way around.

Interior and exterior dimensions For every case, KADOSH³ records interior dimensions (internal height and diameter, which determine whether the scroll fits) separately from exterior dimensions (the space it occupies in the ark). When a measurement is unverified it is not displayed — an empty field is better than a wrong number.

Before ordering Measure the actual scroll: column height, the height of the rollers (atzei chaim) and the circumference of the rolled scroll, and send us the figures before a case is produced.

Note: Educational content, not a halachic ruling.

This article is written for study and orientation only, based on the cited sources, and is not a halachic ruling. For a practical question, consult a rabbi.