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A3 Postal Tubes - 13" Long (330mm)

Protect your products with our superior quality A3 Postal Tubes. This page on the site is designed to help you identify suitable postal tubes for A3 size paper. Though of course they can be used for other items.

Heavy Duty A3 Cardboard Postal Tubes

Strong Defenda A3 Postal Tubes. The most commonly used size Postal Tubes for A3 posters, artwork etc are 330mm long x 50mm diameter or 13" x 2” in imperial size with a 1.5mm wall. These tubes provide a high degree of protection and a reasonable size diameter to prevent curling of the contents.

However, we offer A3 postal tubes in slightly longer lengths for oversized A3 items. We also produce them in narrow diameter and wider diameters.

38mm diameter A3 postal tubes are popular but their narrower diameter can lead to undesirable curling of the product. For those wishing to reduce curling to an absolute minimum our 3” & 4” diameter A3 cardboard postal tubes are an incredibly desirable option.

We manufacture in various wall thicknesses and hold stock of 'Extra Strong' Heavy Duty 2mm wall A3 postal tubes. We also produce cardboard A3 size postal tubes in an Extra Heavy Duty form with a 3mm wall for clients requiring greater levels of protection. Though these super strong tubes are held in smaller quantities.

See All Postal Tube Options

Custom Made A3 Postal Tubes - Made in the UK

We can also manufacture bespoke postal tubes to the exact size that you require, so if you have an unusual size item that you need to ship safely, or need a strong postal tube manufactured to specific dimensions, we can manufacture the exact cardboard postal tube that you require.

Either give us a call on 02476 422000, or drop us an email, and we will be more than happy to assist you with your bespoke postal tube requirements.


Coloured A3 Postal Tubes

Not only can we produce postal tubes to your exact size requirements, we also manufacture superb quality postal tubes in a large range of beautiful colours. This can allow your mailings to make a huge impact with your customers and add a touch of class to the items you are selling and shipping out in the post.

We can manufacture our coloured postal tubes in a whole range of different lengths and diameters too, so check out our coloured postal tube range here


Things To Consider When You Buy A0 Postal Tubes

When purchasing postal tubes for your A3 documents there are a couple of things to bear in mind to ensure your items are properly protected.

  1. A3 postal tube sizes are based on you rolling your documents on the short side, NOT lengthways.
  2. Always remember our postal tubes are manufactured slightly longer to allow a little extra length for the end caps to be pushed into the postal tubes... as you don't want to crumple the edges of your A3 size documents when sealing your tubes.
  3. Where possible staple your caps or plugs in place to provide added security to your postal tube contents. 

A3 Postal Tubes

13" Long (A3 Size) Postal Tubes - 330mm x 38mm

13" Long (A3 Size) Postal Tubes - 330mm x 38mm

1.5” Diameter A3 Size Postal Tubes 13” Long - 330mm Long x 38mm DiameterGood quality narrow diam..

13" (330mm) Long (A3 Size) Postal Tubes - 330mm x 50mm

13" (330mm) Long (A3 Size) Postal Tubes - 330mm x 50mm

A3 Size Postal Tubes 13" Long x 2" Diameter - 330mm Long x 50mm DiameterIf you're looking to b..

13" Long EXTRA STRONG Postal Tubes (A3 Size) - 330mm x 50mm 2MM WALL

13" Long EXTRA STRONG Postal Tubes (A3 Size) - 330mm x 50mm 2MM WALL

Heavy Duty A3 2” Diameter Postal Tubes 13” Long or 330mm Long x 2” or 50mm Diameter with an Ex..

14" Long (A3+ Size) Postal Tubes - 355mm x 50mm

14" Long (A3+ Size) Postal Tubes - 355mm x 50mm

2" Diameter A3+ Size Postal Tubes - 355mm Long x 50mm DiameterOur 14" long A3 postal tubes are manu..

13" Long (A3 Size) Postal Tubes - 330mm x 76mm

13" Long (A3 Size) Postal Tubes - 330mm x 76mm

3” Diameter (A3) Postal Tubes 13” Long - 330mm Long x 76mm DiameterStrong A3 cardboard Postal Tu..

14" Long (A3+ Size) Postal Tubes - 355mm x 76mm

14" Long (A3+ Size) Postal Tubes - 355mm x 76mm

3” Diameter (A3 plus) Postal Tubes 14” Long - 355mm Long x 76mm DiameterStrong cardboard A3 plus..

13" Long SUPER STRONG A3 Postal Tubes - 330mm x 50mm 3MM WALL

13" Long SUPER STRONG A3 Postal Tubes - 330mm x 50mm 3MM WALL

Superb Quality Extra Heavy Duty 3mm Wall A3 Postal TubesThese Defenda Extra Heavy Duty 13" Long..

A3 Postal Tubes - 3 Inch (76mm) Diameter

13" Long (A3 Size) Postal Tubes - 330mm x 76mm

13" Long (A3 Size) Postal Tubes - 330mm x 76mm

3” Diameter (A3) Postal Tubes 13” Long - 330mm Long x 76mm DiameterStrong A3 cardboard Postal Tu..

14" Long (A3+ Size) Postal Tubes - 355mm x 76mm

14" Long (A3+ Size) Postal Tubes - 355mm x 76mm

3” Diameter (A3 plus) Postal Tubes 14” Long - 355mm Long x 76mm DiameterStrong cardboard A3 plus..

A3 Sized Postal Tubes