In a photography studio, erecting polyboards to bounce or absorb light is a common necessity. You can purchase large polyboards from warehouses, paint one side black, and create a versatile studio prop. However, setting up a 2.4x1.2m polyboard can be challenging.

Here's a minimal design that is easy to stack/store, fits board thickness from 4.5 to 5.5cm.

Here's the process of how I designed it if you are interested.