Diagram parts:

20cm X 15cm= 2 pieces          base and shelf

21cm X 9cm = 1 piece              rear part

15cm X 9cm = 2 pieces            sides

14cm X 8,8 cm= 2 pieces        base of the drawers

9,8cm X 5cm= 4 pieces            front and rear of the drawers

14cm X 5cm = 4 pieces            4 drawer sides