We use our own cookies and those of third-parties in order to improve your experience.
You can read more information about our Cookie Policy
Quantity Savings Tier 5+
Subtotal
Free UK delivery over £250*
Free delivery on all UK mainland orders over £250
Free delivery when you spend £250
Limited to UK mainland orders
We’re taking you to the next step please don’t hit back or refresh. If you’re stuck here please contact us.
My dimensions are in:
mmcminches
I'm looking for:
BoxesPostalLabelsBags
Show Me:
Best fit - show the closest matches to these dimensionsItem fit - show only packaging bigger than these dimensions
Find Products
Best fit - show the closest matches to these dimensionItem fit - show only packaging bigger than these dimensions
BoxesBagsPostal
A4 Modular Postal Boxes from ColomPac® are designed to be a slimline, lightweight cardboard postal box which deliver you a protective packaging solution without adding to your postal charges. These A4 postal boxes are easy to assemble, have peel and seal closures which give a secure seal, and have reinforced corners for extra rigidity and stability to avoid crushing during transit. As with all ColomPac® products, these modular postal boxes are supplied flat packed and are recyclable, biodegradable and made from FSC approved sources and recycled materials. For further information read our guide and watch our video for how to use ColomPac® modular postal boxes for your despatches.
Top Tip: A4 size is 210 x 297mm.