Long single wall boxes are ideal if you’re looking to keep postage costs down. Royal Mail’s price category dimensions assume a length that’s greater than the parcel’s width and height, and the single wall cardboard will keep the weight down. They’re especially good for lighter products that don’t need as much protection.
The dimensions that you’ll find listed on all the products below describe the internal measurements of the boxes. We’ve done this to make it as easy as possible for you to find the right size for the products you want to ship. If, however, you can’t see what you’re looking for, you can create your own box with our box calculator.