| 1 |
Quadrille (square) — 1/4 ″ |
Squares at 1/4 ″ (≈ 6.35 mm); “4×4 per inch”. |
General math, sketches, diagrams, note‑taking. |
Often bold lines every 1 inch; also called “quad‑ruled”. |
| 2 |
Metric square — 5 mm |
Squares at 5 mm (≈ 0.197 ″). |
Math/physics classes, design drafting, notebooks. |
Common on A4/A5 pads; sometimes marked every 1 cm. |
| 3 |
Engineering (5×5/in) |
0.2 ″ (≈ 5.08 mm) squares; bold 1 inch lines. |
Engineering calcs, circuit/block diagrams, lab work. |
Often printed on the back of green/yellow pads so the grid shows faintly on the front. |
| 4 |
Millimeter paper — 1 mm |
1 mm squares; heavier lines each 5 mm or 10 mm. |
Precision plotting, lab graphs, optics/electronics. |
Great for fine detail; often sold in A4 sheets or rolls. |
| 5 |
Centimeter paper — 1 cm |
1 cm squares; may include 5 mm subdivisions. |
Early math education, quick layout/measurement tasks. |
Easy visual counting/scaling in metric contexts. |
| 6 |
Dot grid |
Dots at regular spacing (commonly 5 mm or 1/4 ″). |
Bullet journaling, UI/UX sketching, lettering. |
Guides alignment with less visual clutter than lines. |
| 7 |
Isometric (triangular) |
60° grid of equilateral triangles (often 5 mm spacing). |
3D drawing, packaging, product/industrial design. |
Also available as isometric dot‑grid. |
| 8 |
Polar |
Concentric circles with radial lines; rings at 1 mm/5 mm; angles at 5°/10°. |
Polar plots, antenna patterns, trigonometry. |
Some sheets include Cartesian axes overlay. |
| 9 |
Logarithmic (semi‑log / log‑log) |
Axes scaled by decades with 1–9 subdivisions. |
Bode plots, power laws, exponential growth/decay. |
Choose semi‑log (one axis) or log‑log (both axes). |
| 10 |
Hexagonal |
Tessellated hexagons (typical side length ≈ 5 mm). |
Organic chemistry diagrams, game maps, tiling studies. |
Great for nearest‑neighbor layouts and 2D sampling. |
