A method (100) of manufacturing a clamping strap (10) configured to hold and support a hanging object (20) against a structure (21), which is to carry the hanging object, and a clamping strap obtainable by said method; said method comprising providing (101) an extruded elongated aluminium profile having an initial material thickness (T0) and an initial cross-sectional area (A0), said profile having a longitudinal direction, which coincides with the extrusion direction of the profile; forming the profile in a bending step (102) into a shape comprising a first end attachment portion (1a), a second end attachment portion (1b), and an intermediate portion (2) located between said first and second end attachment portions (1a; 1b) in a longitudinal direction of the profile (11), said intermediate portion (2) being configured to at least partially encircle the hanging object (20) when mounted to the structure (21); said method including forming said profile by means of locally thinning the profile in a longitudinal direction of the profile (11), in a thinning C operation (103) to obtain one or more thinned portions having a lower material thickness than the initial material thickness (T0); or locally axially compressing the profile in an axial compression step (104) to obtain one of more axially compressed portions having a higher material thickness than the initial material thickness (T0) and/or greater cross sectional area than the initial cross-sectional area (A0); or by a combination of said thinning operation (103) and said axial compression step (104).