Generators
Isometric Paper
Isometric grid paper: vertical lines and lines at 30° either side of horizontal, forming equilateral triangles — or the same lattice as dots.
Print at 100% (“Actual size”), not “Fit to page”, so the spacing measures true.
Preview of the one-page PDF.
The paper and PDF are made in your browser; nothing is uploaded.
Works in your browser. No account needed.
Frequently asked questions
What is isometric paper used for?
Drawing three-dimensional objects on a flat page without perspective: cubes and block structures in math class, product and technical sketches, 3D lettering, pixel-art style game maps and level designs, and quilt patterns made of diamonds and triangles. The three sets of lines give you the three axes of a 3D drawing: vertical edges go along the vertical lines, and width and depth along the two 30° lines.
Why are the lines at 30 degrees?
In an isometric view, the three axes of a cube appear 120° apart. Drawn on paper with one axis vertical, the other two sit 30° above horizontal to the left and right. Lines at those angles, together with the verticals, divide the page into equilateral triangles, and every edge of a cube has the same length on the paper — which is what “isometric” (equal measure) means.
What size is the grid?
The size is the side of each triangle. With 5 mm triangles the vertical lines are about 4.33 mm apart (the triangle's height, side × √3⁄2); with ¼-inch triangles they are 0.217 inch apart. Printed at 100%, those distances are exact.
Should I use isometric lines or dots?
Lines are easiest for beginners and for drawing along an axis. Dots keep the page cleaner, so finished drawings look better and scan well, and are preferred by many artists once they are comfortable with the angles.
Is isometric paper the same as a triangle grid for quilting?
Yes, the lattice is the same equilateral triangle grid. For English paper piecing with hexagons, the hexagon paper page may be more convenient.
About this tool
Isometric paper makes 3D drawing mechanical: instead of judging angles by eye, you follow the grid. A cube is three diamonds sharing a corner; a staircase or a building is a series of steps along the lines. That is why the paper appears in middle-school math (views of solids built from cubes), design and technology classes, engineering sketches and game art.
This page draws a true isometric grid: vertical lines plus lines at ±30°, meeting to form equilateral triangles of the size you choose. The lines are clipped exactly at the margins, and the vertical lines are centered so the grid is balanced on the page. Switch to dots for the same lattice as points.
Printed at 100%, the triangles have exact sides — 5 mm, 1 cm, ¼ inch, ½ inch or any custom size — so the paper can be used for measured sketches, and multiple sheets line up if you tape them together for a larger drawing.
Tip for beginners: start with a single cube. Draw a vertical line, then the two top edges along the 30° lines, then close the top diamond; add the other verticals and the bottom edges. Every other shape is built from the same moves.