Postal Box

Plain Postal Boxes & Ecommerce Mailing Boxes

Pack ecommerce orders securely and professionally with L-PAC’s range of plain corrugated postal boxes.

Designed for online retail, mail order and fulfilment, these versatile cardboard mailing boxes combine a strong corrugated construction with a neat hinged-lid design, making them ideal for businesses that need packaging to protect products while also creating a professional presentation when the customer opens their order.

The die-cut construction incorporates double-ply side walls, a hinged lid and locking front flaps, while pre-folded crease lines make the boxes quick to assemble at the packing bench. They’re supplied flat-packed, helping maximise available storage space in warehouses, stockrooms and fulfilment centres.

With four useful sizes available, there’s an option for everything from cosmetics, jewellery and accessories through to clothing, electronics, gifts, homeware and multi-item ecommerce orders.

Four Useful Postal Box Sizes

Our plain postal box range includes four sizes:

160 x 150 x 75mm / approximately 6 x 6 x 3″

A compact ecommerce box that’s particularly useful for cosmetics, skincare, jewellery, accessories and smaller delicate products.

222 x 150 x 88mm / approximately 9 x 6 x 3.5″

A versatile medium mailing box suited to products including books, tech accessories, skincare products and gift sets.

290 x 208 x 95mm / approximately 11 x 8 x 4″

A larger postal box with space for folded clothing, footwear, small homeware and multi-item ecommerce orders.

330 x 220 x 150mm / approximately 13 x 9 x 6″

The deepest box in the range, providing additional capacity for bulkier goods, winter clothing and larger retail orders.

All four sizes are listed as Royal Mail Small Parcel options, making the range particularly relevant to UK ecommerce businesses.

Postal Boxes for Ecommerce Businesses

Good ecommerce packaging needs to perform several jobs.

It needs to protect the product, be practical for your packing team, work efficiently within your warehouse and create the right impression when it reaches your customer.

L-PAC’s ecommerce postal boxes provide a versatile solution that can be used across thousands of different products and industries.

Keep the packaging simple for everyday dispatches, or personalise it using tape, labels, tissue paper and other presentation materials.

Postal Boxes for Cosmetics & Beauty Products

The smaller sizes are particularly well suited to the beauty and cosmetics industry.

Use them for products such as:

• Skincare
• Make-up
• Beauty accessories
• Soaps
• Gift sets
• Haircare products
• Small toiletry products

A postal box can provide the outer protection, while tissue paper and ZigZag shredded paper can be added inside to improve presentation and help fill unwanted space.

For beauty brands where the unboxing experience is important, wrap the products in coloured tissue and secure it with one of our circular labels before closing the box.

Mailing Boxes for Clothing & Fashion

Our larger postal boxes provide useful options for fashion and clothing ecommerce.

The 290 x 208 x 95mm box is particularly useful for folded apparel and smaller fashion orders, while the deeper 330 x 220 x 150mm size provides additional capacity for bulkier clothing and larger orders.

Potential applications include:

• T-shirts
• Shirts
• Knitwear
• Underwear
• Accessories
• Scarves
• Small footwear
• Fashion gift sets

For fashion brands, add tissue paper around the garment to create a cleaner and more premium presentation when the customer opens the box.

Postal Boxes for Electronics & Tech Accessories

Plain corrugated postal boxes can also be used for suitably sized electronics and technology products.

Typical applications could include:

• Phone accessories
• Cables
• Chargers
• Computer accessories
• Headphones
• Small gadgets
• Electronic components
• Tech accessories

The appropriate internal protection should always be selected according to the fragility, weight and sensitivity of the particular electronic product.

Boxes for Subscription Businesses

Running a subscription-box business?

Plain ecommerce boxes provide a versatile base for monthly subscription boxes, sample packs, promotional kits and recurring customer orders.

The four available sizes allow businesses to select a box according to the volume of products included in each subscription.

The plain finish also gives you the freedom to change the internal presentation for different campaigns, seasons or product launches.

Ideal for Fulfilment Centres

Packaging needs are slightly different in a busy ecommerce fulfilment centre.

Speed, consistency and storage efficiency become particularly important when teams are packing hundreds or thousands of orders.

L-Pac’s postal boxes are supplied flat-packed to maximise storage capacity, while pre-folded crease lines support fast assembly at the packing bench.

Multiple box sizes also allow fulfilment operations to match packaging more closely to different customer orders rather than relying on one oversized carton for everything.

Whether you’re a growing online retailer, established ecommerce brand or high-volume fulfilment operation, L-PAC’s cardboard postal boxes, ecommerce boxes and mailing boxes provide a practical foundation for getting customer orders packed and dispatched.

What is a postal box?

A postal box is a compact cardboard box designed for sending products through postal or courier networks.

L-PAC’s range uses a die-cut corrugated construction with an integral hinged lid and locking front flaps, creating a neat mailing box particularly well suited to ecommerce orders.

Are these the same as ecommerce boxes?

Postal boxes are frequently also described as ecommerce boxes, mailing boxes, mailer boxes or cardboard mailing boxes.

These terms are commonly used for compact corrugated boxes designed for sending products directly to customers.

What sizes are available?

L-PAC currently offers four sizes:

• 160 x 150 x 75mm
• 222 x 150 x 88mm
• 290 x 208 x 95mm
• 330 x 220 x 150mm

This provides options for smaller products through to larger and bulkier ecommerce orders.

Are these Royal Mail Small Parcel boxes?

Yes. All four current sizes are listed as Royal Mail Small Parcel on the L-PAC product range.

The final packed parcel must still meet the applicable Royal Mail service requirements, so businesses should consider the complete packed dimensions, weight and current carrier rules.

Are postal boxes suitable for cosmetics?

Yes.

The smaller sizes are particularly useful for cosmetics, skincare, beauty products and gift sets.

Consider adding tissue paper or another appropriate internal packaging material according to the fragility of the individual products.

Can I use postal boxes for clothing?

Yes.

The larger sizes can accommodate folded apparel, fashion accessories and other suitably sized clothing products.

The exact box required will depend on the dimensions and quantity of garments being sent.

Can I send electronics in a postal box?

Postal boxes can be used as an outer box for suitably sized electronics, gadgets and tech accessories.

Electronic products vary significantly in fragility, so use appropriate cushioning and specialist protective packaging where required.

Are postal boxes suitable for gifts?

Yes.

The hinged-lid design provides a neat presentation that works particularly well for gifts.

Add tissue paper, ZigZag shredded paper and a circular label to create a more decorative presentation inside the box.

Can fulfilment centres use these boxes?

Yes.

The combination of multiple sizes, flat-packed storage and quick fold-up construction makes them particularly relevant to ecommerce fulfilment and high-volume packing operations.

Are they supplied flat?

Yes.

The postal boxes are supplied flat-packed, helping maximise warehouse and fulfilment storage capacity before they’re required.

Do I need tape to close the box?

The boxes incorporate locking front flaps as part of their construction. Additional tape can be applied when required for extra sealing or to add branding and decoration.

L-PAC stocks 2″ packing tapes and tape guns for businesses wanting to add tape to their packing process.

Which postal box is best for cosmetics and jewellery?

The 160 x 150 x 75mm box is the smallest option and is specifically positioned for products including cosmetics, jewellery, accessories and other smaller items.

Always check your actual product and internal packaging dimensions before ordering.

Which postal box is best for clothing?

The 290 x 208 x 95mm box is positioned for applications including folded apparel, while the deeper 330 x 220 x 150mm box provides more capacity for bulkier products such as winter clothing and larger retail orders.

Which postal box is best for gift sets?

This depends on the dimensions of the gift set.

The 222 x 150 x 88mm size is a useful option for smaller gift sets, while the two larger sizes provide more room for multi-item gifts and additional presentation materials.

Can I buy postal boxes in bulk?

Yes.

Each size is supplied in packs of 25, with volume pricing available through to full-pallet quantities. Depending on the size selected, pallet quantities currently range from 400 to 1,600 boxes.

This makes the range suitable for everyone from smaller online retailers to larger ecommerce and fulfilment operations.

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.