A4 · Portrait
210 × 297 mm · ISO 216
Bold 10 mm centimetre grid for diagrams that read across a room.
A clean 10 mm grid scaled for legibility: enough room inside each cell to write a number, sketch a node or place an annotation. Particularly useful for diagrams that will be photographed, projected, or pinned up on a studio wall. Further reading: A practitioner reading list covers the standards lineage in more depth.
Decimal grid module compatible with metric module-based design (M = 100 mm) used in ISO 1006 modular coordination.
The 10 mm "centimetre grid" was popularised in the 1960s by educational authorities seeking a single grid format that worked at every level of mathematics teaching.
Every variant on this page is delivered as a vector SVG with physical millimetre dimensions baked into the file, so a compliant printer driver will reproduce it at exact 1:1 scale by default. Choose the sheet size that matches your printer tray, set scaling to 100 % (never "fit to page"), and verify with the calibration check on our how-to-print guide. Buyer's guide: Comparing the major architectural scale rulers can help you pick the right physical scale rule to use over the printed grid.
210 × 297 mm · ISO 216
297 × 210 mm · ISO 216
297 × 420 mm · ISO 216
420 × 297 mm · ISO 216
420 × 594 mm · ISO 216
594 × 420 mm · ISO 216
216 × 279 mm · ANSI A
279 × 216 mm · ANSI A
216 × 356 mm · US Loose
356 × 216 mm · US Loose
279 × 432 mm · ANSI B
432 × 279 mm · ANSI B