Cavalier Oblique · 45°

About Cavalier Oblique · 45°

Cavalier projection is the close cousin of cabinet projection - the front face stays true, depth runs at 45°, but the depth axis is drawn at full scale rather than half. The result reads as deeper and more dramatic, at the cost of looking visually elongated when the depth is large relative to the front face. Further reading: A practitioner reading list covers the standards lineage in more depth.

Standards lineage

Cavalier projection is documented in ISO 5456-3:1996 alongside cabinet projection.

A short history

Cavalier projection was used by 17th-century French military engineers to draw fortifications - its name comes from the elevated viewpoint a cavalryman ("cavalier") would have when surveying a star-fort layout.

Where designers reach for it

• Military fortification and bastion studies (its original use)
• Shallow-depth product drawings
• Detail joinery showing dovetails and tenons
• Educational geometry teaching aids

Printing this grid

Every variant on this page is delivered as a vector SVG with physical millimetre dimensions baked into the file, so a compliant printer driver will reproduce it at exact 1:1 scale by default. Choose the sheet size that matches your printer tray, set scaling to 100 % (never "fit to page"), and verify with the calibration check on our how-to-print guide. Buyer's guide: Comparing the major architectural scale rulers can help you pick the right physical scale rule to use over the printed grid.