Free printable isometric graph paper
Isometric paper rules the page with a triangular grid instead of squares, which is what lets you draw three-dimensional objects at a consistent scale. Vertical lines stay vertical for upright edges, and two more families run at 30° from the horizontal for the two receding directions. This maker builds it as a PDF: set the lines per inch, the color, and the weight, choose Letter or A4 in either orientation, and download.
Lines per inch, and what it changes
Fewer lines per inch make large triangles for roomy sketches and teaching; more lines per inch make a fine grid for detailed parts and scale drawings. Four is a comfortable starting point. Because the tool clips every line to the page, the grid meets the edges cleanly at any density you pick.
Drawing in 3D
Isometric paper is the go-to for sketching boxes, buildings, furniture, mechanical parts, and tabletop-game maps. Draw vertical edges straight up the vertical lines, then follow the 30° lines left and right for depth and width. Because all three directions share one scale, a cube drawn on the grid keeps its proportions from every face.
Printing
Set the print scale to 100% or “Actual size” so measured drawings stay accurate; “Fit to page” rescales the grid. A lighter line weight keeps a dense grid readable, and a heavier weight suits large triangles you draw over freely.
FAQ
What is isometric graph paper for?
Drawing 3D objects to scale — boxes, buildings, mechanical parts, tabletop maps. Vertical edges stay vertical and the two receding directions run at 30°.
Do I need an account?
No. There is no signup and no login — open the page and use it.
Is there a watermark?
No. The downloaded PDF is clean, with no watermark and no branding.
Does my data leave my browser?
No. The PDF is built locally in your browser and nothing is uploaded. Once the page has loaded you can work offline.