Paper Sizes for Printing
Understanding paper sizes is essential for any print project. This guide covers standard international and US paper sizes, as well as information about paper weights and finishes.
Standard International Paper Sizes (ISO 216)
The ISO 216 standard defines the A, B, and C series of paper sizes. The A series is the most commonly used for general printing and stationery.
| Size | Dimensions (mm) | Dimensions (inches) | Common Uses |
|---|---|---|---|
| A0 | 841 × 1189 mm | 33.1 × 46.8 in | Posters, large technical drawings |
| A1 | 594 × 841 mm | 23.4 × 33.1 in | Posters, flip charts, technical drawings |
| A2 | 420 × 594 mm | 16.5 × 23.4 in | Small posters, diagrams, large photos |
| A3 | 297 × 420 mm | 11.7 × 16.5 in | Ledgers, charts, small posters |
| A4 | 210 × 297 mm | 8.3 × 11.7 in | Letters, magazines, forms, catalogs |
| A5 | 148 × 210 mm | 5.8 × 8.3 in | Notepads, booklets, flyers |
| A6 | 105 × 148 mm | 4.1 × 5.8 in | Postcards, small books |
Each A size is exactly half the size of the previous one when folded parallel to the shorter sides.
US Paper Sizes
| Size | Dimensions (inches) | Dimensions (mm) | Common Uses |
|---|---|---|---|
| Letter | 8.5 × 11 in | 216 × 279 mm | Standard business documents, letters |
| Legal | 8.5 × 14 in | 216 × 356 mm | Legal documents, contracts |
| Tabloid/Ledger | 11 × 17 in | 279 × 432 mm | Tabloid newspapers, posters |
| Junior Legal | 5 × 8 in | 127 × 203 mm | Notepads, small forms |
Comparison with ISO Standards
US Letter (8.5 × 11 in) is slightly wider and shorter than A4 (8.3 × 11.7 in). This difference can cause issues when printing documents created for different standards.
Paper Weights and Finishes
Understanding Paper Weight (GSM)
Paper weight is measured in grams per square meter (GSM). The higher the GSM, the thicker and more durable the paper.
- •80-100 GSM: Standard office paper, suitable for everyday printing and internal documents
- •100-120 GSM: Premium office paper, letterheads, high-quality documents
- •130-170 GSM: Posters, flyers, and promotional materials
- •180-250 GSM: Business cards, postcards, book covers
- •260-300 GSM: Premium business cards, menus, high-quality brochures
- •300+ GSM: Luxury business cards, presentation folders, premium packaging
Paper Finishes
Matte
Non-reflective finish that's easy to write on. Good for readability and professional documents.
Glossy
Shiny, reflective finish that makes colors pop. Ideal for photos and vibrant marketing materials.
Silk/Satin
Middle ground between matte and glossy. Offers some shine without being too reflective.
Uncoated
Natural paper feel, absorbent and easy to write on. Good for stationery and letterheads.
Textured
Papers with various textures like linen, felt, or laid. Adds a tactile element to premium print products.
Paper Size Selection Guide
Business Cards
Standard size: 85 × 55 mm (3.35 × 2.17 in)
Recommended weight: 300-350 GSM
Popular finishes: Matte, Glossy, Spot UV, Soft-touch lamination
Flyers & Leaflets
Common sizes: A6, A5, A4, DL (99 × 210 mm)
Recommended weight: 130-170 GSM
Popular finishes: Glossy, Matte, Uncoated
Posters
Common sizes: A3, A2, A1, A0
Recommended weight: 150-200 GSM
Popular finishes: Glossy, Satin
Brochures
Common sizes: A4, A5, DL
Recommended weight: Cover: 250-300 GSM, Inside: 130-170 GSM
Popular finishes: Glossy, Matte, Silk
Letterheads
Standard size: A4 (210 × 297 mm)
Recommended weight: 90-120 GSM
Popular finishes: Uncoated, Watermarked
Banners
Common sizes: Custom, typically measured in meters
Recommended material: PVC, Mesh, Fabric
Popular finishes: Matte, Semi-gloss
Frequently Asked Questions
What is bleed and why is it important?
Bleed is the area that extends beyond the final trim size of your printed piece. It's typically 3mm on all sides. Bleed is important because it ensures there are no white edges when the document is trimmed to its final size.
What's the difference between A4 and US Letter?
A4 (210 × 297 mm) is slightly narrower and taller than US Letter (216 × 279 mm). A4 is the standard in most countries, while US Letter is primarily used in North America.
How do I choose the right paper weight?
Consider the purpose of your printed piece. Lightweight papers (80-120 GSM) are good for everyday documents, medium weights (130-200 GSM) for marketing materials, and heavyweight papers (250+ GSM) for premium products like business cards.
Can I order custom paper sizes?
Yes, we offer custom paper sizes for most print products. Contact our customer service team with your specific requirements, and we'll help you determine the best options for your project.
Ready to Start Your Print Project?
Now that you understand paper sizes and weights, it's time to bring your print project to life. Our team is ready to help you choose the perfect specifications for your needs.