SRA3
Dimensions: 320 × 450 mm (12.6 × 17.72 in)
SRA3 measures 320 × 450 mm (12.60 × 17.72 in) and belongs to the ISO 216 standard. It is commonly used for commercial printing with bleed and trim allowance.
What size is SRA3 paper?
An SRA3 piece of paper measures 320 × 450 mm or 12.60 × 17.72 inches. It is part of the Raw Paper Sizes standard.
| Units | Width × Height |
|---|---|
| Metric millimeters (mm) | 320 × 450 mm |
| Metric centimeters (cm) | 32.00 × 45.00 cm |
| Metric meters (m) | 0.320 × 0.450 m |
| Imperial inches (in) | 12.60 × 17.72 in |
| Typographic points (1/72 inch) (pt) | 907.09 × 1275.59 pt |
| Typographic picas (1/6 inch) (pc) | 75.59 × 106.30 pc |
| Pixels at 300 DPI (px) | 3,780 × 5,315 px |
SRA3 is part of the raw paper sizes standard. Raw paper sizes (SRA and RA) are slightly larger than their A-series counterparts, providing extra space for bleed, grip, and trim during commercial printing.
Quick facts
- Size (mm)320 × 450 mm
- Size (inches)12.60 × 17.72 in
- Aspect ratio1 : 1.41
- StandardISO 216
- Common useDocuments, letters, forms
Compare SRA3 with other sizes
Typical uses for SRA3
SRA3 measures 320 × 450 mm (12.60 × 17.72 in) and is used for the following tasks.
- Commercial printing with bleed and trim allowance
- Sheet-fed press layouts
- Packaging and finishing proofs
- Imposition planning
Printer tip
Most desktop printers cannot feed SRA3. Use a wide-format device or a print shop, and confirm the driver offers this exact size rather than a scaled substitute.
SRA3 at common DPI
Pixel dimensions for SRA3 at popular resolutions. Rounded to whole pixels; physical sheet remains 320 × 450 mm.
| DPI | Width (px) | Height (px) |
|---|---|---|
| 72 | 907 | 1,276 |
| 96 | 1,209 | 1,701 |
| 150 | 1,890 | 2,657 |
| 300 | 3,780 | 5,315 |
| 600 | 7,559 | 10,630 |
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320 × 450 mm (12.6 × 17.72 in)