Abstract: An adjustable chock (100) of a modular design comprises a first element (102), a second element (108), a center element (104), and a center stud (106). In operational use of the chock, the first element engages with a piece of machinery (101) and the second element engages with a support (103). The first element (102) and the center element (106) have complementarily shaped contact surfaces to allow for lateral adjustment of the first element relative to the second element. The center stud (106) is connected to the center element (104) through a screwed connection. The center stud (106) is connected to the second element (108) through another screwed connection. The modular design allows using the same first element (102), the same second element (108) and the same center element (104) with center studs of different lengths.