Printable Graph Paper

Triangular Graph Paper

A field of equilateral triangles with every line at 0°, 60° or 120°, so 30-60-90 geometry is drawn rather than constructed.

210 × 297 mm
Download PDF
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How to print Triangular Graph Paper

  1. Pick the paper

    Choose Triangular Graph Paper from the list. It opens with the usual size already set.

    Triangular Graph Paper selected in the list of paper types
  2. Set it up

    Pick the paper size, the grid and the orientation. Customize holds colours, margins and more.

    Settings for Triangular Graph Paper: paper size, grid and orientation
  3. Download or print

    Download the ready PDF, or print straight from the page at 100% scale.

    Triangular Graph Paper preview with the Download PDF and Print buttons

The angles come free

On squared paper a 60° line is an approximation you eyeball or set out with a protractor. On triangular paper it is simply the next line along. So is 120°, and so are all the reflections of both.

That turns a whole family of constructions into tracing: equilateral triangles, regular hexagons, rhombi, trapezia and every tessellation built from them.

Triangles, hexagons and everything between

The triangular lattice is the parent of several others — join alternate vertices and you have hexagons; take pairs of triangles and you have rhombi.

  • Tessellation work — the three regular tilings all live on this grid.
  • Trigonometry teaching — 30-60-90 triangles without a protractor.
  • Quilt and textile design — half-square and equilateral piecing.
  • Crystallography sketches — close-packed planes drawn by hand.
  • Islamic and geometric pattern design — the six-fold construction grid.

Every sheet here is free, adjustable and prints at exact scale.

Questions

How is this different from isometric paper?

Isometric paper adds vertical lines to the triangular lattice so you can draw upright edges of solids. Triangular paper leaves them out, which suits flat pattern work rather than 3D sketching.

Can I draw hexagons on it?

Yes — six triangles round a shared vertex make a regular hexagon, so hexagonal tilings fall straight out of the grid.

What triangle size should I pick?

8 to 12 mm is comfortable for pattern work. Go smaller for dense tessellations, larger for classroom demonstrations.