- Apple boxes are wooden (or plywood) boxes of various sizes with holes at each end, used mostly on set. These boxes are specialized equipment and should not be confused with simple boxes or crates for apples :-) (Wikipedia)
Appleboxes, a very common piece of equipment on set, are used for anything that needs temporary support. They can be used to support furniture and light stands, to level a camera cart track, or to create temporary seating, work surfaces or steps.
There is often a need for an actor to appear taller to match the composition of a particular shot, and in In this case, Appleboxes may just be irreplaceable. Appleboxes were originally used for storage. They usually have an open front wall, and it can be used as a container for storing small essentials.
Apple box stands are made of plywood with an oil-resistant coating. The kit includes 4 drawers, which are widely used when installing lighting and other equipment on the set. Three stands completely retract into a fourth for easy storage and transportation.
https://baumwerk.com.ua/en/store/apple-box-universal#sigProId15cf2ed9bc
Sizes:
Twenty, Full, Apple Box Full - 200mm x 530mm x 330mm
Ten, Half, Apple Box Half - 100 mm x 500 mm x 300 mm
Five, Four, Apple Box Quarter - 50mm x 500mm x 300mm
Pancake. Pancake, Apple Box Eighth - 24mm x 500mm x 300mm
Three smaller boxes stack to make an Apple Box Full. The weight of the set is approximately 14 kg.

