Kits for use in forming three-dimensional articles, particularly articles of furniture, from flat cardboard sheets

A kit for use in forming a three-dimensional article from flat cardboard sheets, comprising:

• an assembly of flat cardboard sheets, each cut according to a predetermined configuration and formed with a predetermined arrangement of fold lines such as to permit the cardboard assembly to be expanded from a flat condition to a three-dimensional condition defining a three-dimensional article;
• wherein said predetermined arrangement of fold lines includes:
• (a) first fold lines permitting the cardboard assembly to be folded from said flat condition to a three-dimensional condition to define a peripheral side wall of the three-dimensional article;
• and
• (b) second fold lines spaced inwardly of viewable edges of said peripheral side wall, defining flaps bent inwardly and joined to the inner surface of said peripheral side wall, such as to present fold lines, rather than cut edges, at the viewable edges of said peripheral side wall.