Packaging with integrated cushioning supports

A blank for forming product packaging comprising:

• a central base panel;
• a left panel integrally extending outward from a left side of the central base panel and connected to the central base panel at an upward fold line;
• a right panel integrally extending outward from a right side of the central base panel and connected to the central base panel at an upward fold line;
• an upper panel integrally extending outward from an upper side of the central base panel and connected to the central base panel at an upward fold line;
• and
• a lower panel integrally extending outward from a lower side of the central base panel and connected to the central base panel at an upward fold line,
• wherein each of the left panel and the right panel comprises five sub-panels connected at parallel upward fold lines, and wherein, counting outward from the central base panel, their first and third sub-panels all have the same width, and their second and fourth sub-panels all have the same width,
• wherein each of the upper panel and the lower panel comprises five sub-panels connected at parallel upward fold lines, and wherein, counting outward from the central base panel, their first and third sub-panels all have the same height, their second and fourth sub-panels all have the same height and their fifth sub-panels both have a height equal to a hypotenuse height, where the square of the hypotenuse height equals the sum of the squares of the heights of the third sub-panels and the fourth sub-panels.