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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.

Price

from Rp 77.000

Softcover, French link sewing. Printed and sewn to order.

Ships in 6–14 business days · 7-day returns

4.9 from 85 buyer reviews of Hibrkraft

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Every cover and binding option is quoted when you order.

Specification

Type
Notebook · Refill for a leather cover
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
Rows per page
38
Dating
Undated

Build it

Rp 77,000

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

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

What is inside this book?

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.

The PDF of this book.

We do not sell the design or the PDF. Download it free, with no conditions at all, not even tracking. What we sell is the book, a real object that is genuinely useful and can help your life.

Download PDF PDF · 128 pages · 0.2 MB

Made at the Hibrkraft bindery, Bogor · about the maker

Compared with

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

Price

from Rp 77.000

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Track Record

  • 15 Years of Work
  • 100,000+ Products Made
  • 4.9 Google Rating · 85 reviews
  • 5 Countries UAE · MY · CA · DE · NL
  • 2,000 pcs Capacity / Month
Trusted by
Pertamina · POLRI · PPLi · Unilever
Covered by
TVRI · Trans7 · MNC Home Living · iNews Radio
In print
Tabloid Nova · Bogor Today · Tren Bogor
Awards
UDUNAN 2020 Winner · Ekraf Jabar · Mitra Jabar
The Hibrkraft team outside the workshop in Bogor
The Hibrkraft team, Bogor
Download the Hibrkraft Company Profile PDF · 31 pages · 5,6 MB · 2026-09-22

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