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North American
Aspect Ratio: 1:1.333
Arch A Format
Millimeters228.6 × 304.8 mm
Inches9 × 12″
Common Uses
Architectural drawings
Drafts
Arch A Standard
📐Pixel Dimensions
Digital canvasses rely on exact pixel densities (DPI/PPI) to match physical print dimensions. Graphic designers standardly request assets rounded to the nearest whole pixel at these crucial breakpoints:
72 DPI
Canvas Size648 × 864pixels (px)
Standard web output and rough digital mockups.
150 DPI
Canvas Size1350 × 1800pixels (px)
High-res digital art or minimal standard print flyers.
300 DPI
Canvas Size2700 × 3600pixels (px)
The gold standard for crisp professional printing (magazines, books, commercial work).