View our range of high-quality large letter boxes. Available in DL size, C5/A5, C4/A4 in either Die-Cut or Quick Pack designs. Each size is manufactured in the United Kingdom. Each box features folding indents/fold lines to make folding easy. All of our large letter boxes are manufactured in the UK from single wall strong 1mm thick cardboard. All large letter boxes are Pricing in Proportion (PiP) cardboard boxes which are large letter qualifying. For bulk quantities of up to 20,000 boxes please contact us using the contact form for a quote.

Now Available! C7 and C6 Boxes in both White and Brown colours