1/4 inch Triangular Graph Paper — Letter
At 1/4 inch per side, the triangles stay small enough for detailed work but large enough to label by hand. This is the go-to for ternary (three-component) plots in chemistry and materials science, where each axis runs 0 to 100 percent. The inch-based pitch also lines up cleanly with imperial rulers, making it handy for quilters drafting half-square-triangle blocks and for isometric pattern sketches.
Live preview at true proportions. Print at 100% / “Actual size” (not “Fit”) for exact measurements.
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1/4 inch triangular graph paper specs
1/4 inch spacing gives 4 squares per inch — the classic US school and engineering grid most people picture as "graph paper".
- Triangle size
- 1/4 inch
- = 6.35 mm
- Page size
- Letter
- Inches
- 8.5 × 11 in
- Millimetres
- 216 × 279 mm
Printing tips
- •Set print scale to 100% or “Actual size” — never “Fit to page,” which shrinks the grid.
- •Choose the Letter paper size in your printer settings to match this sheet.
- •For the lightest lines, pick a lighter color or “Thin” weight before downloading.
Frequently asked questions
How big is the 1/4 inch spacing when printed? +
Each cell measures exactly 1/4 inch when you print at 100% / “Actual size.” SheetKit builds the PDF at true dimensions so the spacing is accurate.
What page size is this? +
This sheet is sized for Letter (8.5 × 11 in / 216 × 279 mm) in portrait orientation. You can switch size and orientation in the generator above.
Is it free to download? +
Yes — free, no watermark, no signup. The PDF is generated privately in your browser.