Printable Triangle Graph Paper
Triangular graph paper is built from three families of parallel lines set 60° apart, which tiles the page with equilateral triangles. It's the base grid for tessellation design, for many quilting and patchwork patterns, and for ternary composition diagrams.
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- Exact-scale vector PDF
- Letter, A4, Legal & more
- Commercial use OK
36pt is half an inch — safe on virtually every printer.
Free, no signup. Print at 100% scale (not “fit to page”) so the measurements come out exact.
Live preview — US Letter (8.5 × 11"), portrait · updates as you change any setting.
Three directions, one lattice
Take horizontal lines, add a second family rotated 60°, then a third rotated 120°, and the intersections produce a perfect equilateral triangle tiling. Every small triangle is identical, and any six of them meet to form a hexagon — which is why triangle paper and hex paper are really two views of the same underlying lattice.
Tessellations and pattern design
The equilateral triangle is one of only three regular polygons that tile the plane, and it's the most flexible of them for pattern work: triangles combine into rhombi, trapezoids, hexagons and stars without leaving gaps. That makes this the natural paper for designing repeating patterns, Islamic geometric ornament, and patchwork blocks built from half- and quarter-triangles.
Ternary and technical use
In materials science, geology and chemistry, triangular grids underpin ternary plots — diagrams where three components sum to 100% and any composition is a single point inside the triangle. Soil texture classification and alloy phase diagrams both use this form, and hand-plotting on triangle paper is still a common teaching exercise.
Personalize your triangle graph paper
The sheet above is free. Open Personalize this sheetunder the Download button to add these Premium options — they show up in the live preview straight away, so you can see exactly what you'll print before deciding.
- Title, name and date lines. A title and subtitle across the top, plus Name and Date lines — relabel them, pre-fill them, or add your own lines such as Class, Period or Composer.
Premium is the same $2.99 day pass or $6.99 monthly plan that covers every puzzle maker on the site. See every option on one page: custom printable paper.
Frequently Asked Questions
What is triangular graph paper used for?
Designing tessellations and repeating patterns, quilting and patchwork layouts, ternary composition diagrams in chemistry and geology, and as an alternative to isometric paper for 3D sketching.
How is this different from isometric paper?
Isometric paper uses two 30° families plus verticals; triangle paper uses three families at 0°, 60° and 120°. The isometric arrangement is oriented for drawing 3D boxes, while the triangular one is oriented for flat pattern work — though the two are closely related.
Can I make hexagons on triangle paper?
Yes. Any six triangles sharing a vertex form a regular hexagon, so hexagonal patterns draw naturally on this grid — which is useful when you want both the hexes and their internal subdivisions visible.
What spacing works best?
1/4 inch is a solid default for pattern design. Choose finer spacing for intricate geometric ornament and coarser spacing for quilt blocks, where each triangle usually represents a whole fabric piece.
Can I add my name, a title or a date to this triangle graph paper?
Yes. Premium prints a title, subtitle and your own Name, Date or custom lines across the top of the sheet. Every option works in the live preview for free, so you can see the result first; downloading with them is included in the $2.99 day pass or the $6.99 monthly plan, which also removes the small puzzlepage.app mark. The plain triangle graph paper stays free to download and print.
Printing Tips
- Print at 100% scale.Turn off “fit to page” and “shrink oversized pages” — otherwise your printer rescales the sheet and the measurements no longer match.
- Match the paper size. Choose the same size here as the paper in your tray. Printing a Letter PDF on A4 (or the reverse) scales it.
- Lighter lines print better. A light grey or blue guides your work without competing with it — and it uses far less ink.
- Use heavier paper for wet media. 100gsm and up for fountain pens and markers; standard copier paper is fine for pencil.