Letter boxes
Our range of letterbox boxes are designed to fit through door mail slots and meet Royal Mail's postage sizes.
![](https://ph-prod.imgix.net/wp-content/uploads/2022/02/08104138/eco-eco-white-mailer-box-kv-default@1x.png?fit=clip&auto=format)
![](https://ph-prod.imgix.net/wp-content/uploads/2020/05/27162614/materials_kraft.png?fit=clip&auto=format)
![](https://ph-prod.imgix.net/wp-content/uploads/2020/05/27162621/materials_white.png?fit=clip&auto=format)
ECO / ECO WHITE MAILER BOX
A cardboard mailing box with black print. Perfect for a minimalist and eco-friendly look.
Price from
£39.96 / 30 pieces
Price includes VAT
More letter boxes
![](https://ph-prod.imgix.net/wp-content/uploads/2022/02/08104138/eco-eco-white-mailer-box-kv-default@1x.png?fit=clip&auto=format&h=240)
![](https://ph-prod.imgix.net/wp-content/uploads/2020/05/27162614/materials_kraft.png?fit=clip&auto=format&w=16&h=16)
![](https://ph-prod.imgix.net/wp-content/uploads/2020/05/27162621/materials_white.png?fit=clip&auto=format&w=16&h=16)
Eco / Eco White Mailer Box
Available in 14 sizes
Min. 30 pieces
Eco / Eco White Mailer Box
Mailing box for brands that care about sustainability.
Eco Biodegradable material, Contents made from recycled materials, Eco-friendly
Best for employee onboarding, retail packaging, shipping products
Customize it
![](https://ph-prod.imgix.net/wp-content/uploads/2022/02/08103934/custom-cardboard-envelope-kv-default@1x.png?fit=clip&auto=format&h=240)
![](https://ph-prod.imgix.net/wp-content/uploads/2020/05/27162614/materials_kraft.png?fit=clip&auto=format&w=16&h=16)
![](https://ph-prod.imgix.net/wp-content/uploads/2020/05/27162621/materials_white.png?fit=clip&auto=format&w=16&h=16)
Custom Cardboard Envelope
Available in 2 sizes
Min. 30 pieces
Custom Cardboard Envelope
A rigid, printed envelope. Ideal for shipping flat items like documents..
Eco Biodegradable material, Eco-friendly
Best for employee onboarding, shipping products, customise, dieline
Customize it
![](https://ph-prod.imgix.net/wp-content/uploads/2022/02/08104617/padded-envelope-kv-default@1x.png?fit=clip&auto=format&h=240)
![](https://ph-prod.imgix.net/wp-content/uploads/2020/05/27162614/materials_kraft.png?fit=clip&auto=format&w=16&h=16)
![](https://ph-prod.imgix.net/wp-content/uploads/2020/05/27162621/materials_white.png?fit=clip&auto=format&w=16&h=16)
Padded Envelope
Min. 1500 pieces
Padded Envelope
Padded envelopes with custom sizing, colours and branding.
Best for customise
Customize it
![](https://ph-prod.imgix.net/wp-content/uploads/2022/02/08104128/eco-colour-mailer-box-kv-default@1x.png?fit=clip&auto=format&h=240)
![](https://ph-prod.imgix.net/wp-content/uploads/2020/05/27162621/materials_white.png?fit=clip&auto=format&w=16&h=16)
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, Contents made from recycled materials, Eco-friendly
Best for employee onboarding, retail packaging, shipping products, customise, dieline, pattern
Customize it
![](https://ph-prod.imgix.net/wp-content/uploads/2022/02/08104306/full-colour-mailer-box-kv-default@1x.png?fit=clip&auto=format&h=240)
![](https://ph-prod.imgix.net/wp-content/uploads/2020/05/27162621/materials_white.png?fit=clip&auto=format&w=16&h=16)
Full Colour Mailer Box
Available in 14 sizes
Min. 30 pieces
Full Colour Mailer Box
Corrugated boxes with the most vivid prints.
Eco Contents made from recycled materials, Eco-friendly
Best for employee onboarding, retail packaging, shipping products
Customize it
![](https://ph-prod.imgix.net/wp-content/uploads/2022/02/08104939/sleeved-mailer-box-kv-default@1x.png?fit=clip&auto=format&h=240)
![](https://ph-prod.imgix.net/wp-content/uploads/2020/05/27162614/materials_kraft.png?fit=clip&auto=format&w=16&h=16)
![](https://ph-prod.imgix.net/wp-content/uploads/2020/05/27162621/materials_white.png?fit=clip&auto=format&w=16&h=16)
Sleeved Mailer Box
Available in 12 sizes
Min. 30 pieces
Sleeved Mailer Box
Cardboard mailer box with a printed sleeve.
Eco Contents made from recycled materials, Eco-friendly
Best for employee onboarding, retail packaging, shipping products, customise, dieline, pattern
Customize it
![](https://ph-prod.imgix.net/wp-content/uploads/2022/02/08104630/plain-mailer-box-kv-default@1x.png?fit=clip&auto=format&h=240)
![](https://ph-prod.imgix.net/wp-content/uploads/2020/05/27162614/materials_kraft.png?fit=clip&auto=format&w=16&h=16)
![](https://ph-prod.imgix.net/wp-content/uploads/2020/05/27162621/materials_white.png?fit=clip&auto=format&w=16&h=16)
Plain Mailer Box
Available in 14 sizes
Min. 30 pieces
Plain Mailer Box
A simple cardboard box made for shipping.
Eco Biodegradable material, Contents made from recycled materials, Eco-friendly
Best for large or heavy products, shipping products, plain
Place your order
![](https://ph-prod.imgix.net/wp-content/uploads/2022/02/08104624/plain-delivery-box-kv-default@1x.png?fit=clip&auto=format&h=240)
![](https://ph-prod.imgix.net/wp-content/uploads/2020/05/27162614/materials_kraft.png?fit=clip&auto=format&w=16&h=16)
![](https://ph-prod.imgix.net/wp-content/uploads/2020/05/27162621/materials_white.png?fit=clip&auto=format&w=16&h=16)
Plain Delivery Box
Available in 4 sizes
Min. 30 pieces
Plain Delivery Box
A cardboard delivery box with adhesive strips.
Eco Contents made from recycled materials, Eco-friendly, Reusable
Best for large or heavy products, shipping products, plain
Place your order
![](https://ph-prod.imgix.net/wp-content/uploads/2022/02/08103554/book-mailer-kv-default@1x.png?fit=clip&auto=format&h=240)
![](https://ph-prod.imgix.net/wp-content/uploads/2020/05/27162614/materials_kraft.png?fit=clip&auto=format&w=16&h=16)
![](https://ph-prod.imgix.net/wp-content/uploads/2020/05/27162621/materials_white.png?fit=clip&auto=format&w=16&h=16)
Book Mailer
Min. 1500 pieces
Book Mailer
Easy-fold mailers with custom prints & securing flaps
Best for shipping products, customise
Customize it
Subscribe to get 5% off all products!
What materials are used in your letterbox boxes?
Our letterbox boxes are crafted using high-quality corrugated cardboard, ensuring durability and protection for your products.
Are there eco-friendly letterbox box options available?
Yes, Packhelp offers eco-friendly letterbox box options, made from recyclable and biodegradable materials, aligning with our commitment to sustainability. Ask our team about FSC certifications.
Can I get a sample before placing a bulk order?
Certainly! Packhelp offers sample packs, allowing you to assess the quality and design before committing to a larger order.