ANSI E
North American (ANSI & Arch) · 6 specs
Direct Answer
ANSI E is the largest standardized engineering sheet size defined by ANSI/ASME Y14.1, measuring 34.0 × 44.0 inches (863.6 × 1117.6 mm). Equal to 16 US Letter sheets, it is standard for full-scale commercial aerospace wing spars, naval ship general arrangements, and highway interchange profiles.
Source: ANSI/ASME Y14.1 · Last reviewed Aug 28, 2026
Specs
| Width × Height (Imperial) | 34.00 × 44.00 in |
| Width × Height (Metric) | 863.6 × 1117.6 mm |
| ANSI Hierarchy | ANSI E = 2 × ANSI D = 4 × ANSI C = 8 × ANSI B = 16 × ANSI A |
| Aspect Ratio | 1 : 1.2941 (17 : 22) |
| International ISO Equivalent | A0 (841 × 1189 mm) |
| Primary Applications | Aerospace structural drawings, naval ship construction plans, state highway transit maps |
Full-Scale Industrial Plotting
ANSI E is the maximum standard sheet size deployed on 36-inch and 44-inch roll-fed engineering plotters in North America, allowing complex multi-system structural overlays to be viewed without panel segmentation.