Boxes & Cartons

Heavy Duty Postal Boxes / Gift Boxes

4.1 · 14 reviews

Cardboard Boxes Kraft Heavy Duty Gift Boxes Packing Cartons

  • Reinforced construction
  • Secure fold-over closure
  • Eco-conscious choice
  • UK made quality
From £5.09 Ex. VAT (£6.11 Incl. VAT)
Enter your postcode for exact dates and rates to your area.
Standard delivery
3–4 days
Sun 20 Sep – Mon 21 Sep FREE over £25
Priority delivery
1–2 days
Fri 18 Sep £2.95
Ordered today? Dispatched the next working day
Estimated dates — delivery options & rates are chosen at checkout.
Free UK mainland delivery over £25 · dispatched same day if ordered before 2:30pm
30-day easy returns
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Parcel trackingFollow every order to your door
1-hour delivery slotKnow exactly when it arrives
Sustainably sourcedFSC® board & recyclable

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All sizes in this range

Every size in this range, with pack quantities. Choose your size and quantity above.

Title Int L x W x H (in) Int L x W x H (cm) Int L x W x H (mm) Pack
S 6" x 6" x 4" 16cm x 16cm x 10cm 160mm x 160mm x 100mm 50 Per Pack / 800 Per Pallet
L 10" x 6" x 4" 26cm x 16cm x 11cm 260mm x 160mm x 110mm 50 Per Pack / 800 Per Pallet
Description

Some parcels need more than a standard box, and our Heavy Duty Postal Boxes are made for exactly those moments. Constructed from thick, high-grade corrugated cardboard, they stand up to the stacking, dropping and compression that parcels face on their way through couriers and sorting hubs, so what you pack is what your customer unpacks.

Strength is matched by smart design. The fold-over lid with tuck-in flaps wraps the contents securely and closes tight, while the flat, smooth outer faces give labels, tape and branding a clean, professional finish. Whether you're dispatching electronics, glassware, ceramics, cosmetics sets or premium gifts, the box holds its shape and presents beautifully on arrival.

The range comes in a wide selection of sizes, so you can pick a snug fit for everything from compact high-value items to larger multi-product orders. A close fit means less movement in transit, less void fill and lower postage costs, with the added reassurance that the box itself is doing the hard work of protecting your goods.

Manufactured in the UK from sustainably sourced, fully recyclable cardboard, these boxes combine dependable heavy-duty performance with a responsible environmental footprint. Supplied flat-packed for easy storage and quick assembly, and available in packs to suit both occasional senders and busy fulfilment operations.

Specifications
Size

6" x 6" x 4" (160 x 160 x 100mm), 10" x 6" x 4" (260 x 160 x 110mm)

Pack

1 – Sample, 10, 25, 50, 100

Delivery & returns

Free UK mainland delivery on orders over £25. Order before 2:30pm (Mon–Fri) for same-day dispatch; standard delivery is 3–4 working days. Priority delivery is available at checkout.

30-day returns: if you order the wrong size or change your mind, return unused items in their original packaging within 30 days for a credit, exchange or refund (subject to our terms).

Reviews (0)

The star rating shown is a combined rating from our sales channels (14 ratings). The written reviews below were left by customers on this website.

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