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An opening of Squared Insert 4 mm: two facing white pages ruled into a fine square grid.

Plain Lab · notebook

Squared Insert 4 mm

A four millimetre grid, thirty-eight rows to the page, for anyone whose hand runs small enough to need one.

Specification

Trim
127 × 177.8 mm · 5 × 7 in
Pages
128
Leaves
64
Sheets
32
Signatures
4 × 32pp
Spine
7.32 mm
Paper
white
Ruling
graph
Ruling pitch
4.00 mm · 11.34 pt
Rows per page
38

Four millimetres is a tight pitch for a square grid, tight enough to hold a dense diagram or a small table without the lines crowding each other into a blur. Thirty-eight rows fit the page at that spacing.

A coarser five millimetre version of the identical grid sits elsewhere on this shelf, better suited to a looser hand or a rougher sketch. Neither pitch is the correct one. It is a question of how small the drawing needs to sit.

Every square on the page is built from vector paths, not a tiled bitmap, so it keeps a sharp edge at any zoom instead of turning into a grey smear on a close look. It does not make the drawing inside the squares any more accurate.

What is inside

Notes
125pp
Four millimetre graph ruling, thirty-eight rows to the page, drawn as vector geometry.

The film

Page by page

A vertical film from our own bench — this page contacts nobody's server to play it, and downloads nothing until you press play.

A vertical film, 27 seconds: the ruling page and the figures printed on its last leaf. Synthesised ambient bed, no dialogue — captions in three languages.

Real pages

A close view of the fine square grid, the lines four millimetres apart in both directions.
Four-millimetre squares, for working small.
The front matter page, giving the contents and their pages, the ruling and the signature count, with a checklist before you start.
Four-millimetre squares, thirty-eight rows to a page.
The pen-test leaf, with pen, ink and swatch columns and the figures printed at the foot: squared, 4.0 mm, 38 rows per page, one column.
The finest grid here.

Made at the Hibrkraft bindery, Bogor · about the maker

Books that sit alongside it

Questions

How fine is the grid?

Four millimetres, thirty-eight rows to the page.

Is a coarser grid available?

Yes, a five millimetre version sits elsewhere on this shelf.

Is the grid a printed pattern or drawn geometry?

Vector geometry, not a tiled image, so it holds a sharp edge under a close zoom.

Is it dated?

No.

Does it come with a cover?

No. It is the sewn block, sized for a leather cover made separately.

A simple shadow is one where no light at all interferes with it.
Leonardo da Vinci, The Notebooks of Leonardo da Vinci, c. 1500

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The Hibrkraft team outside the workshop in Bogor
The Hibrkraft team, Bogor
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