Paper bag sizes can be confusing. Block bottom bags are sold by “lb” size, carrier bags by small, medium and large, and every supplier measures a little differently. This guide explains the main types of paper bag used by UK takeaways, bakeries and shops, with measurements, so you can order the right size first time.
Block Bottom Paper Bags (SOS Grab Bags)
Block bottom bags, also called SOS bags or grab bags, have a flat square base so they stand open on the counter while you fill them. They have no handles.
The lb number is a traditional trade name for each size. It describes roughly how much the bag holds by volume. It is not a weight rating, so always check the measurements.
| Size | Width × gusset × height | Good for |
|---|---|---|
| 3.5lb | 150 × 65 × 305mm | Snacks, sweets, single pastries |
| 5lb | 150 × 65 × 355mm | Sandwiches, wraps, rolls |
| 7lb | 175 × 115 × 345mm | Baked goods, small takeaway orders |
| 10lb | 204 × 115 × 381mm | Bakery and deli orders |
| 14lb | 215 × 100 × 385mm | Bread and larger bakery orders |
| 21lb | 254 × 140 × 419mm | Larger takeaway and grocery orders |
| 28lb | 260 × 100 × 520mm | Tall and bulky items |
See our block bottom paper bags, in packs of 250 (3.5lb to 7lb) or 125 (10lb to 28lb).
SOS Paper Carrier Bags with Handles
SOS carrier bags have the same flat base plus flat paper tape handles. They are the go-to bag for takeaway orders and shop purchases.
| Size | Inches (approx.) | mm (approx.) | Good for |
|---|---|---|---|
| Small | 7 × 10.5 × 8.5in | 175 × 260 × 225mm | Sandwiches, pastries, single meals |
| Medium | 8 × 13 × 10in | 215 × 325 × 250mm | One or two takeaway containers |
| Large | 10 × 15.5 × 12.5in | 250 × 380 × 300mm | Several containers or bulkier items |
| Extra large | 12.5 × 19 × 14in | 320 × 480 × 350mm | Big family orders and heavier loads |
Brown kraft is the most popular choice for takeaways. White gives a cleaner finish that many bakeries, cafés and gift shops prefer. See our SOS paper carrier bags with handles.
Flat Brown Paper Bags
Flat paper counter bags have no gusset or handles. They are the cheapest option for pastries, sandwiches, fruit and veg, and small shop items. See our brown paper bags in 11 sizes from 6 × 6 to 19 × 21 inches.
Candy Striped Paper Bags
The classic pick and mix bag, in 5 × 7, 7 × 9 and 10 × 14 inches. See our candy striped paper bags.
Which Paper Bag Should I Choose?
- Takeaway orders: SOS carrier bags with handles, medium or large
- Bakery and sandwich counters: block bottom bags (5lb to 10lb) or flat brown bags
- Sweet shops: candy striped bags
- Grocers and farm shops: block bottom bags (14lb to 28lb)
Frequently Asked Questions
What does SOS stand for on paper bags?
SOS is the trade name for bags with a square, self-opening base that stands upright.
Does 10lb mean the bag holds 10 pounds?
No. The lb number is a size name, not a weight rating. Check the measurements above.
Can I mix sizes in one order?
Yes. Quantity discounts are worked out on the total number of packs in your basket.
Can I collect from your unit?
Yes. You can collect from our unit in Nuneaton, Monday to Friday 10am to 4pm, or order online with free UK delivery on orders over £75 ex VAT.
Browse all our paper bags.

