Floor box for formwork made of steel for accommodating Q12 installation units. Floor box made of sheet steel, consisting of floor box, 4 x threaded pin M8, 4 x lock nut M8, 1 x earthing cable 300 mm, mounting protection plate, mounting cover. Suitable for the installation of supply units and cassettes of size Q12. With pre-punched entry openings on the side walls and floor for empty pipes (16 x M20, 12 x M25). Can be mounted on a height extension of size Q12. Tested according to DIN EN 50085-1 and DIN EN 50085-2-2.