A method of manufacturing a clamping strap configured to hold and support a hanging object against a structure, which is to carry the hanging object, said method comprising providing an extruded elongated aluminium profile having an initial material thickness (T 0) and an initial cross-sectional area (A 0), said profile having a longitudinal direction, which coincides with the extrusion direction of the profile; forming the profile in a bending step into a shape comprising a first end attachment portion, a second end attachment portion, and an intermediate portion located between said first and second end attachment portions (1a; 1b) in a longitudinal direction of the profile, said intermediate portion being configured to at least partially encircle the hanging object when mounted to the structure; and characterized in that the method includes forming said profile by means of locally thinning the profile in a longitudinal direction of the profile, in a thinning operation to obtain one or more thinned portions having a lower material thickness than the initial material thickness (T 0); or locally axially compressing the profile in an axial compression step to obtain one of more axially compressed portions having a higher material thickness than the initial material thickness (T 0) and/or greater cross sectional area than the initial cross-sectional area (A 0); or by a combination of said thinning operation and said axial compression step. said method comprising providing an extruded elongated aluminium profile having an initial material thickness (T 0) and an initial cross-sectional area (A 0), said profile having a longitudinal direction, which coincides with the extrusion direction of the profile; forming the profile in a bending step into a shape comprising a first end attachment portion, a second end attachment portion, and an intermediate portion located between said first and second end attachment portions (1a; 1b) in a longitudinal direction of the profile, said intermediate portion being configured to at least partially encircle the hanging object when mounted to the structure; and characterized in that the method includes forming said profile by means of locally thinning the profile in a longitudinal direction of the profile, in a thinning operation to obtain one or more thinned portions having a lower material thickness than the initial material thickness (T 0); or locally axially compressing the profile in an axial compression step to obtain one of more axially compressed portions having a higher material thickness than the initial material thickness (T 0) and/or greater cross sectional area than the initial cross-sectional area (A 0); or by a combination of said thinning operation and said axial compression step. locally thinning the profile in a longitudinal direction of the profile, in a thinning operation to obtain one or more thinned portions having a lower material thickness than the initial material thickness (T 0); or locally axially compressing the profile in an axial compression step to obtain one of more axially compressed portions having a higher material thickness than the initial material thickness (T 0) and/or greater cross sectional area than the initial cross-sectional area (A 0); or by a combination of said thinning operation and said axial compression step.