Post-Friendly Letterbox Boxes

The typical UK letterbox measures 254mm x 38mm, or 10 inches x 1.5 inches. When choosing your packaging, it’s crucial to note that most packaging suppliers provide both internal and external dimensions, and you should focus on the external measurements. It’s advisable to select packaging that is a few millimetres smaller than the letterbox size to ensure it fits without being forced through.

We’ve taken the time to note the Royal Mail PiP on all our product pages, to find out more about this, read our blog Navigate Royal Mail Parcel Dimensions with Confidence.

Yes, there are typically costs involved in creating a cutting tool (known as a forme) if the box has a unique size. However, if you choose a box size that we already have in stock, a cutting tool isn’t usually necessary unless you need to modify with features or change the material. Printing costs should be considered, as they vary based on the number of colors used and the printing method. For more details, please contact one of our team members.

Absolutely, custom-made boxes can be a valuable investment for businesses looking to enhance their brand image and create a memorable unboxing experience for their customers.  You can tailor your custom letterbox box to reflect your brand’s unique identity and/or to offer added protection during shipping to reduce the risk of damage, ensuring your products arrive in pristine condition.

Printing on the inside of a box provides several advantages. Firstly, it offers a chance to surprise and delight customers when they open it. Moreover, the interior can be utilised to share important details, such as instructions, promotional content, or a sincere thank you note, boosting customer engagement. From a marketing perspective, this additional space can be leveraged to reinforce brand identity through the consistent application of logos, colours, and messaging.

We don’t charge for packaging design; it’s included in our service. If you need packaging tailored to your product, sending us the product can be beneficial and speed up the design process.

Typically, we do not provide a physical sample of a printed box. Instead, a plain sample will be included in the design process, along with a digital proof of the artwork you submit for approval.

Once we receive your order, along with artwork and sample approvals, it takes approximately 10-15 days to produce your corrugated postal boxes.

The smallest order we accept for plain or printed letterbox boxes is 500 units.

In addition to our self-seal letterbox-friendly box, we also stock a range of padded envelopes, a book wrap mailer, a cardboard envelope and our two smallest sizes of compostable mailing bags.