Two-point perspective grid
A horizon line with rays converging on two vanishing points off either side of the page — the standard construction for drawing a building or object seen from a corner.
Opens with these settings already loaded. Change anything you like, then download as PDF, PNG or SVG.
One, two and three points
One-point perspective has a single vanishing point and keeps verticals vertical and horizontals horizontal — right for looking straight down a corridor or street. Two-point puts a vanishing point off each side and is what you use when you can see two faces of an object, like a building viewed from a corner. Three-point adds a vanishing point far above or below for extreme upward or downward views.
Moving the horizon
The horizon line is the viewer's eye level, and where you put it changes the whole image. Low on the page gives a worm's-eye view that makes the subject look imposing; high gives a bird's-eye view that flattens and reveals layout. The horizon control moves it anywhere on the sheet, which is worth experimenting with before you commit to a drawing.
Ray density
Too many rays and the sheet becomes unreadable; too few and you lose the guides where you need them. The default is a compromise. Increase the ray interval for a cleaner sheet you can draw over freely, or decrease it when you need fine control near the vanishing points.
Printing it accurately
This only measures correctly if your printer doesn't rescale the page. In the print dialog set Scale: 100% — not "Fit to page" or "Shrink oversized pages". If you're not sure it worked, print the calibration page, measure the ruler on it with a real ruler, and it will tell you exactly what your printer is doing to the page.