You will need
  • Cardboard, ruler, pencil, scissors/x-ACTO knife, glue
Take a large sheet of cardboard. It needs to be thick enough and not brittle – that is not cracked at the folds. Draw in the center of the rectangle. This will be the bottom of your box.
To the right and left side adjacent to the side of the box. Their height equals the depth of the packaging itself.
To the upper and lower edges of the main rectangle, two adjacent sides of the box – front and back. Their height equal to the height of the side storonok described in the previous paragraph. The sides of each of these parts add a valve for the connection box. If you plan to store lightweight items, it will be enough valves 2 cm wide, otherwise the width is better to maximize. Cut faces of the valves at an angle of 45 degrees.
How to make a box out of cardboard
Bend the cardboard on all drawn lines. Valves lubricate with white glue and fold inward, connect them to the sides of the box.
While this part dries, take cover. Length and its width 2-5 mm greater than the length and width of the box bottom, and the sides can be any. To both sides of the covers also add bumpers for mounting.