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Letter boxes

Our range of letterbox boxes are designed to fit through door mail slots and meet Royal Mail's postage sizes.

All Products Envelopes Mailer boxes Packaging accessories Mailing bags Tubes Flexible packaging Packaging bags Sample packs

ECO / ECO WHITE MAILER BOX

A cardboard mailing box with black print. Perfect for a minimalist and eco-friendly look.

Price from

€95.20 / 30 pieces

Price includes VAT

Choose size and quantity

More letter boxes

Custom Cardboard Envelope

Available in 2 sizes

Min. 30 pieces

Custom Cardboard Envelope

A rigid, printed envelope. Great for shipping flat items.

Eco Biodegradable material, Recyclable

Best for employee onboarding, shipping products, customise, dieline

Customize it

Eco / Eco White Mailer Box

Available in 14 sizes

Min. 30 pieces

Eco / Eco White Mailer Box

Shipping packaging for brands that care about the environment.

Eco Biodegradable material, FSCⓇ available, Recyclable, Recycled content

Best for employee onboarding, retail packaging, shipping products

Customize it
New
Plus

Padded Envelope

New
Plus

Min. 1500 pieces

Padded Envelope

Padded envelopes with custom sizing, colours and branding.

Best for customise

Customize it

Eco Colour Mailer Box

Available in 14 sizes

Min. 30 pieces

Eco Colour Mailer Box

Eco mailer boxes with colourful prints on whitened cardboard.

Eco Biodegradable material, Recyclable, Recycled content

Best for employee onboarding, retail packaging, shipping products, customise, dieline, pattern

Customize it

Full Colour Mailer Box

Available in 14 sizes

Min. 30 pieces

Full Colour Mailer Box

Corrugated boxes with the most vivid prints.

Eco Recyclable, Recycled content

Best for employee onboarding, retail packaging, shipping products

Customize it

Sleeved Mailer Box

Available in 12 sizes

Min. 30 pieces

Sleeved Mailer Box

Cardboard mailer box with a printed sleeve.

Eco Recyclable, Recycled content

Best for employee onboarding, retail packaging, shipping products, customise, dieline, pattern

Customize it

Plain Mailer Box

Available in 14 sizes

Min. 30 pieces

Plain Mailer Box

A simple cardboard box with no strips made for safe shipping.

Eco Biodegradable material, Recyclable, Recycled content

Best for large or heavy products, shipping products, plain

Place your order

Plain Delivery Box

Available in 4 sizes

Min. 30 pieces

Plain Delivery Box

A cardboard delivery box with adhesive strips.

Eco Recyclable, Recycled content, Reusable

Best for large or heavy products, shipping products, plain

Place your order
New
Plus

Book Mailer

New
Plus

Min. 1500 pieces

Book Mailer

Easy-fold mailers with custom prints & securing flaps

Best for shipping products, customise

Customize it
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As Europe’s leader of custom packaging solutions, you can find a wide range of cardboard post boxes for whatever you may need. Make the most of custom packaging design for Royal Mail Large Letter boxes and Small Parcel boxes!

Standard size cardboard post boxes

Packhelp’s range of letterbox boxes fit a standard size of ‘small parcel’ guidelines for Royal Mail, Deutchepost and many other European mail services. If you’re sending product via the mail and need custom packaging to meet a universal size, Packhelp has the ideal cardboard post boxes you need. Design a custom Royal Mail Large Letter Box or Small parcel box, keep your packaging costs down and save money!

More than just a box

The letterbox packaging that you deliver your products is much more than just a box. Our range of cardboard post boxes is designed to make sure that your product arrives at its destination safely and in style. Our corrugated cardboard letterbox boxes make sure that your product won’t get damaged in transit, but they still echo your businesses branding and visual imagery.

Cardboard post boxes for ecommerce

If you’re an ecommerce brand that relies on your national postal service to deliver your products, you need a cardboard post box that fits into your local letter box. By doing this, you’ll lower your packaging costs for both you and your customer.

Whether you need large bespoke letter postal boxes or a simple cardboard post box with your brand’s logo, Packhelp’s range of custom letter boxes are robust, durable and printed to the highest quality.

Customised letterbox friendly boxes

Using Packhelp’s online designer, you design your cardboard post boxes exactly how you like them. Drag and drop your logo and create your box top perfectly match the rest of your branding.

Then, have your letterbox postal boxes printed on full colour, white, or the natural kraft texture of cardboard. Design your letterbox boxes exactly how you want them to leave a great first impression with your recipients.

Free delivery in the UK and EU when you spend over €300/£300

Using Packhelp, you can not only design your high-quality yet cheap gift boxes, but they’ll be delivered to your UK or EU address for free when you spend over €300/£300, and within 14 days. With minimum orders of just 30 pieces, you can design your own gift boxes without investing a fortune. Design and order your letterbox postal boxes with Packhelp now!