The invention relates to a head for a formwork prop, which comprises a lower pin for connecting to the prop, a base for supporting beams, and four projections arranged to form a rectangle defining a long side and a short side, each projection being disposed at a corner of said rectangle, the rectangle delimiting an area for receiving beams. The head comprises two plates perpendicular to the support base, the plates being arranged parallel to each other and to the long side such that the plates leave a space therebetween for a beam and respective spaces for a beam in the space between the ends of the plates and one of the projections, each plate comprising at least two housings for attaching a beam.