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Letterbox Postal and Mailing Boxes

Our fully recyclable Mailer Boxes are perfect for your eco-conscious customers.

With customisable branding, messaging, and graphics on durable E-Flute material, your parcels arrive undamaged and make a lasting impression. Designed to fit standard UK letterboxes, our professional letterbox packaging ensures convenient delivery. Let your brand shine with SM1 Print Studio's custom Mailer Boxes, spreading your message far and wide.

Want to take your unboxing experience further? Be sure to check out our full range of Packaging Supplies.

  • 3 styles available
  • Letterbox friendly
  • Large letter sizes available
  • Fully recyclable material

Uses: Retail and eCommerce packaging, gift boxes, press kits and more.

Top tip: Looking to minimise postage costs? Opt for one of our Royal Mail Large Letter friendly mailer boxes.

Artwork tip: Create patterns and shapes that extend across the entire surface area of the box for a seamless look.

At SM1 Print Studio, we're here to tackle any question, no matter how big or small. We understand that ordering print can feel like a challenge, but fear not! We're here to make it a breeze. If you can't find the answer you're looking for in the FAQs below, don't hesitate to reach out to us via email or telephone. Local? You can pop into our Studio and we can show you samples of our amazing work. We absolutely love connecting with people, so don't be shy!

Do you offer letterbox-friendly options?

Choose from our Royal Mail Large Letter mailer boxes, available in two sizes: 255 x 168 x 22mm or our 100 x 100 x 22mm box. They're perfect for hassle-free deliveries right through the letterbox!

Do you sell flower postal boxes?

When placing your order at SM1 Print Studio, simply select our 182 x 600 x 35mm capacity flower postal box, and your flowers will be protected and beautifully presented during transit.

I only require a small quantity?

We understand the importance of catering to all needs, big or small. You can order as few as five copies, so you get precisely what you need without any excess.

How sturdy are the boxes for postage?

Our Postal Boxes at SM1 Print Studio are top-notch when it comes to durability. We print them on White E-coated Fluted Boards, making them incredibly sturdy. Rest assured that your packages will stay safe and intact during transit.

Are they guaranteed to fit through a letterbox?

Absolutely! We design and manufacture all our postal boxes at SM1 Print Studio to fit through a standard UK letterbox. No need to worry about missed deliveries or having to rearrange - your parcels will slide right through the letterbox with ease!

We Design for You

Our Graphic Design Service

Discover the limitless creativity of SM1 Print Studio! Our vibrant team excels in graphic design, from captivating logos to comprehensive brand guidelines.

Whether it’s eye-catching Flyers or polished Brochures, no challenge is too big or small. Let us bring your vision to life with bespoke designs. Get ready to be amazed! Contact our friendly and dedicated team today to embark on an exhilarating design journey like never before. Your ultimate creative experience awaits at SM1 Print Studio!

Find out more about our design & digital services.

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