Choosing the right mailing bag size is essential for protecting your items, reducing waste, and keeping shipping costs down. Whether you’re sending a small accessory or a bulky item, the PPO Mailing Bag Size Guide will help you select the ideal bag for your needs.
Why Size Matters
Using the correct mailing bag size ensures:
- Protection: Items are snug and secure during transit.
- Efficiency: Less packaging waste and better use of space.
- Cost-effectiveness: Avoid overpaying for postage due to oversized packaging.
📏 Mailing Bag Sizes & What Fits
Here’s a breakdown of common mailing bag sizes and examples of what each can hold:
| Size (inches) | Ideal For |
|---|---|
| 5″ x 7″ (120 X 170mm) | Small items like watches, jewellery, or USB drives. |
| 6″ x 9″ (162 x 230mm) | Wallets, phone cases, or compact accessories. |
| 9″ x 12″ (230 x 310mm) | Folded t-shirts, thin books, or small electronics. |
| 10″ x 14″ (250 x 350mm) | Documents, notebooks, or Royal Mail Large Letters. |
| 12″ x 16″ (305 x 405mm) | Hoodies, small parcels, or lightweight clothing. |
| 13″ x 17″ (320 x 440mm) | Trainers, boxed items, or bulkier apparel. |
| 14″ x 19″ (350m x 500mm) | Cushions, pillows, or multiple clothing items. |
| 17″ x 24″ (425 x 600mm) | Shoe boxes, medium parcels, or layered clothing. |
| 22″ x 30″ (550 x 750mm) | Winter coats, large garments, or soft bulky items. |
| 24″ x 35″ (600 x 900mm) | Exercise mats, rolled posters, or yoga gear. |
| 28″ x 34″ (700 x 850mm) | Medium suitcases, boxed electronics, or bulk orders. |
| 33″ x 41″ (850 x 1050mm) | Duvets, bedding sets, or large soft goods. |
🖼️ Note: The image above provides a visual reference for each size, helping you estimate what fits best. Items shown are for approximate sizing and not to scale.
💡 Tips for Choosing the Right Size
- Measure your item before selecting a bag.
- Consider padding if the item is fragile.
- Avoid oversized bags to reduce movement and potential damage.
✅ Ready to Ship Smarter?
Whether you’re sending a single item or packing in bulk, choosing the right mailing bag size makes all the difference. With our easy-to-follow guide Packaging Products Online helps you ship smarter — and greener.