Paper Bag Sizes Explained: SOS Bags, Block Bottom Bags and Carrier Bags (UK Guide)

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.

SizeWidth × gusset × heightGood for
3.5lb150 × 65 × 305mmSnacks, sweets, single pastries
5lb150 × 65 × 355mmSandwiches, wraps, rolls
7lb175 × 115 × 345mmBaked goods, small takeaway orders
10lb204 × 115 × 381mmBakery and deli orders
14lb215 × 100 × 385mmBread and larger bakery orders
21lb254 × 140 × 419mmLarger takeaway and grocery orders
28lb260 × 100 × 520mmTall 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.

SizeInches (approx.)mm (approx.)Good for
Small7 × 10.5 × 8.5in175 × 260 × 225mmSandwiches, pastries, single meals
Medium8 × 13 × 10in215 × 325 × 250mmOne or two takeaway containers
Large10 × 15.5 × 12.5in250 × 380 × 300mmSeveral containers or bulkier items
Extra large12.5 × 19 × 14in320 × 480 × 350mmBig 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.

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