Printable isometric graph paper for 3D drawing
An isometric grid of equilateral triangles, with vertical lines and 30° diagonals, makes it easy to draw cubes, buildings and objects in three dimensions.
43 triangle columns · 5 mm sides
Ready-to-print isometric paper templates
Print one as it is, download the PDF, or load it into the editor above to adjust it first.
5 mm
1 cm
1/4 inch
1/2 inch
What is isometric paper?
Isometric paper is ruled with three sets of parallel lines: one vertical and two at 30° to the horizontal. Together they form equilateral triangles that match the angles of an isometric projection, so you can draw a 3D object by following the grid instead of measuring angles. The size setting is the length of each triangle side; parallel lines end up about 0.87 times that distance apart.
What isometric paper is used for
- Isometric projections in design and engineering classes
- Sketching buildings, rooms and product ideas in 3D
- Drawing maps for tabletop and video games
- Geometric patterns, quilting and tessellation designs
Isometric paper on A4, Letter and other paper sizes
| Paper size | Printed area | At default settings |
|---|---|---|
| A4default210 × 297 mm | 190 × 277 mm | 43 triangle columns · 5 mm sides |
| US Letter8.5 × 11 in | 195.9 × 259.4 mm | 45 triangle columns · 5 mm sides |
| A5148 × 210 mm | 128 × 190 mm | 29 triangle columns · 5 mm sides |
| A3297 × 420 mm | 277 × 400 mm | 63 triangle columns · 5 mm sides |
| US Legal8.5 × 14 in | 195.9 × 335.6 mm | 45 triangle columns · 5 mm sides |
How to print isometric paper at actual size
- 01
Click “Download PDF” and open the file in your PDF viewer.
- 02
In the print dialog, set the scale to 100% or “Actual size”, not “Fit to page”.
- 03
Choose the paper size that matches your settings and print. Measure one square or line with a ruler to check.
Isometric paper: frequently asked questions
What does the triangle size setting mean?
It is the side length of each equilateral triangle. A 5 mm setting gives triangles with 5 mm sides, and the gap between parallel lines is about 4.33 mm.
What is the difference between isometric and graph paper?
Graph paper uses squares, which suits flat 2D drawings. Isometric paper uses triangles at 30°, which suits drawing objects in 3D without perspective distortion.
Which triangle size is best for beginners?
Start with 1 cm triangles, which are large enough to see the structure clearly. Move to 5 mm once you are comfortable and want more detail.