Our 0427 postal boxes are designed to meet the specific needs of eCommerce businesses. On each page, we state which size our postal boxes are categorised in by royal mail, i.e. small or large parcels, for instance. This information is great for keeping your shipping costs to a minimum. On the other hand, our postal boxes can be custom-made with shallower depths, allowing for a maximum external depth of 25mm. This makes them eligible for classification as a large letter (not a parcel!) by Royal Mail, helping you save on overall shipping costs.
When sending goods via a courier, parcel size and measurements play a crucial role in minimising shipping costs. That’s why we always provide both external and internal dimensions of our boxes, helping you accurately determine shipping costs based on your selected packaging.
Bear in mind that while letterbox sizes may vary, the standard UK letterbox can accommodate packages with maximum external dimensions of 254mm length and 38mm height.