In case you’re wondering what is the size of an Architectural or Engineering drawing, these architectural and engineering drawing size reference charts are provided for your convenience and reference.
| Standard US Architectural Drawing Sizes | ||
| Drawing Size | Dimensions (millimeters) | Dimensions (inches) |
| ARCH A | 228.6 x 304.8 | 9 x 12 |
| ARCH B | 304.8 x 457.2 | 12 x 18 |
| ARCH C | 457.2 x 609.6 | 18 x 24 |
| ARCH D | 609.6 x 914.4 | 24 x 36 |
| ARCH E | 914.4 x 1219.2 | 36 x 48 |
| Standard US Engineering Drawing Sizes | ||
| Drawing Size | Dimensions (millimeters) | Dimensions (inches) |
| ANSI A | 215.9 x 279.4 | 8.5 x 11 |
| ANSI B | 279.4 x 431.8 | 11 x 17 |
| ANSI C | 431.8 x 558.8 | 17 x 22 |
| ANSI D | 558.8 x 863.6 | 22 x 34 |
| ANSI E | 863.6 x 1117.6 | 34 x 44 |
