Ship e-commerce dispatches securely with L-PAC Packaging Solutions’ plain corrugated postal boxes.
Ship e-commerce dispatches securely with our plain corrugated postal boxes. Designed with a crush-resistant die-cut structure and locking front flaps, these versatile cardboard mailers provide high-strength protection while delivering a clean, professional unboxing experience for online retail.
* All prices shown are per unit / each.
| ITEM | Sizes | Royal Mail PIP | Units per pack / pallet | 1-4 packs | 5-14 packs | 15-29 packs | 30+ packs | 1-2 pallets | 3+ pallets | Quantity | Add To Basket |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 6 x 6 x 3 | 160 x 150 x 75 6 x 6 x 3 | Small Parcel | 25 p/pack 1600 p/pallet | £0.36 | £0.29 | £0.23 | £0.21 | £0.16 | £0.15 | | |
| 9 x 6 x 3.5 | 222 x 150 x 88 9 x 6 x 3.5 | Small Parcel | 25 p/pack 1600 p/pallet | £0.47 | £0.43 | £0.30 | £0.27 | £0.20 | £0.19 | | |
| 11 x 8 x 4 | 290 x 208 x 95 11 x 8 x 4 | Small Parcel | 25 p/pack 800 p/pallet | £0.70 | £0.58 | £0.46 | £0.41 | £0.32 | £0.31 | | |
| 13 x 9 x 6 | 330 x 220 x 150 13 x 9 x 6 | Small Parcel | 25 p/pack 800 p/pallet | £1.20 | £1.05 | £0.93 | £0.84 | £0.70 | £0.64 | |
Available Sizes
6 x 6 x 3 inches: Compact die-cut mailer for small accessories, cosmetics, jewellery, and delicate items.
9 x 6 x 3.5 inches: Versatile medium postal box ideal for books, tech gadgets, skincare, and gift sets.
11 x 8 x 4 inches: Spacious mailer designed for folded apparel, footwear, small homeware, and multi-item orders.
13 x 9 x 6 inches: Deep, high-capacity shipping box built for bulkier goods, winter clothing, and larger retail parcels.
Key Product Features
Crush-Resistant Design: Double-ply side walls and a secure hinged lid protect contents from courier impact during transit.
Fast Assembly: Pre-folded crease lines enable instant fold-up construction for efficient high-volume packing.
Space-Saving Delivery: Supplied flat-packed to maximise warehouse and fulfilment storage capacity.
100% Sustainable: Crafted from cardboard; plastic-free, biodegradable, and kerbside recyclable.
Are L-PAC plain postal boxes suitable for Royal Mail pricing tariffs in the UK?
Yes. Smaller sizes like 6 x 6 x 3 and 9 x 6 x 3.5 fall comfortably within Royal Mail Small Parcel dimensions, helping UK e-commerce businesses optimise postage and shipping costs.
How do plain cardboard mailing boxes protect goods during UK courier shipping?
Manufactured from lightweight yet durable fluted corrugated board, these mailers feature double-wall sides and interlocking front flaps that absorb shocks and prevent crushing throughout transit networks across the UK.
Are L-PAC cardboard postal boxes 100% recyclable and eco-friendly?
Absolutely. All L-PAC plain postal mailers are fully biodegradable, plastic-free, and 100% kerbside recyclable for UK consumers.
Can UK e-commerce businesses buy plain postal boxes in wholesale or bulk quantities?
Yes. L-PAC Packaging Solutions supplies trade clients, online retailers, and fulfilment centres across the UK with wholesale postal boxes in bulk quantities, backed by competitive trade pricing.
Do these plain postal boxes require packing tape to stay closed?
While the integrated tuck-in locking flaps keep the box firmly shut, applying a strip of festive tape, packaging tape, or a branded circle label ensures extra tamper-evident security during courier delivery.
From £0.24
From £0.25
We pride ourselves on being a one-stop shop for all your packaging needs. From standard and bespoke packaging, inside to outside of the box – we’ve got you covered!
