Shape first, then board. A book is not a cube. A roll is not a book. A letter format is not a small parcel. This page stays with M-envelope boxes, next to Royal Mail large letter boxes.
Packaging Boxes keeps M-envelope boxes apart from book wraps. They are a different range from book wraps, which are E-flute with a peel-and-seal strip.
What this collects
M-envelope boxes are the Tenvolope flat pack, described as 100% recycled and fully recyclable.
Royal Mail large letter boxes is the neighbour on this list. Large letter boxes are for the large-letter format, not for a small parcel that happens to be flat. It is still a different range from M-envelope boxes.
Before the order goes in
Match the document or the slim goods to the M-envelope size.
A Packaging Boxes basket with M-envelope boxes still leaves the same day if it is placed by 3pm. The terms aim for 5.30pm the next working day. A 1 to 3 day courier is also described, depending on the lines.