Abstract: A leveling assembly (2) comprising at least two leveling elements (4, 6) and having an uppermost surface (10) for seating a free-standing object 18. Elements (4, 6) are generally wedge-shaped, have upper (10, 14) and lower (12, 16) surfaces angled to one another (38, 42), are adapted to be placed one on the other and rotated relative to one another in order to vary the angle between the uppermost and lowermost assembly (16) surfaces. The elements (4, 6) may have co-operating guiding means (78, 82) or co-operating connecting means (184, 187) to aid in rotating the elements (4, 6) relative to one another and to resist shifting. In addition, the surfaces (16, 56) of the elements (4, 52) may be adapted with concave or cavity portions (58) in order to allow better seating on a surface (8). Reference markings (22, 28) placed on the elements (4, 6) aid in determining a suitable rotation of the elements (4, 6) relative to one another in order to compensate for a given slope.