A selection of square ecommerce postal boxes. These square hinged lid boxes are perfect for sending products through the postal or courier system, or make great eco-friendly single piece gift boxes. Fill with our range of shredded paper and acid free tissue for the perfect finishing touch.
A selection of square ecommerce postal boxes. These square hinged lid boxes are perfect for sending products through the postal or courier system, or make great eco-friendly single piece gift boxes. Fill with our range of shredded paper and acid free tissue for the perfect finishing touch.
Dimensions (mm)
L: 110 x W: 110 x H: 100
These easy to assemble flat packed one piece hinged lid boxes are great for online retailers looking to ship their goods through the postal and cou...
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Dimensions (mm)
L: 210 x W: 210 x H: 85
These square easy to assemble flat packed one piece hinged lid boxes are great for online retailers looking to ship their goods through the postal ...
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Dimensions (mm)
L: 260 x W: 260 x H: 95
These easy to assemble flat packed one piece hinged lid boxes are great for online retailers looking to ship their goods through the postal and cou...
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Dimensions (mm)
L: 350 x W: 350 x H: 150
These easy to assemble flat packed one piece hinged lid boxes are great for online retailers looking to ship their goods through the postal and cou...
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Dimensions (mm)
L: 400 x W: 400 x H: 95
Great for graze platters, party catering, afternoon teas and food deliveries, our new platter box is perfect for protecting and holding 40x40cm pla...
View full detailsSquare postal boxes offer more than just a neat shape – they give your parcels a reliable frame that works well whether your products are small electronics or delicate cosmetics. Their uniform dimensions mean you can pack efficiently without wasted space. Mind you, odd-shaped or irregular boxes often cause problems in sorting centres, but square formats slide through more smoothly and stack neatly on pallets or delivery vans.
Durability is key in postal packaging, yet heavy materials only add to your shipping costs. These square mailer boxes strike a solid balance – made from robust single-wall cardboard with a B-flute corrugation, they fend off typical handling knocks without bulk. Plus, choosing a mailing box with a self-seal strip can save tape and speed up packing without compromising strength. That said, for fragile items inside, adding a layer of bubble wrap or void fill is always wise – the box doesn’t have to do all the work.
Not all square postal boxes are created equal when it comes to size. Opting for a box around 250mm x 250mm x 100mm, for example, can be perfect for standard products like apparel or small gadgets and still remain within many courier size limits, helping avoid surcharges. If your parcel fits too snug or has too much empty space, you risk damage or paying for postage on weight you don’t need. We recommend measuring your typical product plus any padding before choosing a size to avoid running out of stock in the wrong dimensions.
Because these boxes are square, they’re easier to stack tightly in storage or packing areas, cutting down on wasted shelf or warehouse space. When flat-packed, they don’t take up much room either and fold out quickly – that’s crucial when packing hundreds of mailers a day. Using consistent box sizes simplifies stock management too; you can predict how many boxes fit on a pallet or in a delivery shipment, which saves on admin headaches. Plus, the square edges actually help when labelling – your postage stamps or shipping labels stay neatly aligned so scanners pick them up without issues.
If you want to explore other shapes or styles, check out our rectangular postal boxes for longer items that don’t fit neatly into square dimensions. For a greener choice, the kraft postal boxes offer a natural finish with strong recyclability. And if you deal with smaller parcels that require budget-friendly postage options, our small parcel compliant postal boxes could be just right for lightweight but secure shipping. Each option has been chosen for specific packing challenges you might face.
Give us a call on 01543 480163 if you want advice on picking the right size or style – we know how important the right box is for your delivery success.
Our in-house design team are consistently recognised with industry awards for their packaging design excellence.
