A method for machining profiles, comprising the following operating steps: - positioning at least a profiled member on at least a support with an end of said profile projecting from said support and according to a longitudinal extension direction of said profile that is transversal to a direction of movement of a tool means; - locking said profile relative to said support using position-holding means (3, 4, 5); - machining said end by moving said tool means along at least said direction of movement so as to remove material of said profile in accordance with one or more of the following sub-steps: ▪ machining said profile in a "female" configuration, wherein said tool means is moved so as to remove only a part of a central portion of said end in an oblique machining direction relative to said longitudinal direction of said profile and to said direction of movement, so as to perform an oblique cut of said central portion relative to a head edge of at least one surface layer of the profile facing the tool means and so as to maintain two of said surface layers partly projecting and respectively defining an internal face and an external face of said profile when positioned in place; ▪ machining said profile in a "male" configuration, complementary to the "female" configuration, wherein said tool means is moved so as to remove two planar layers (1e, 1f) of said end, and to perform a cut of the whole end so that the removal takes place in an oblique machining direction relative to said longitudinal direction of said profile and to said direction of movement, so as to perform an oblique cut of the whole end relative to an edge that delimits the machined surface from the non-machined surface, the edge being perpendicular to said longitudinal direction in order to be able to obtain a "male-female" type corner joint at said end machined along said oblique machining direction relative to said longitudinal direction. - positioning at least a profiled member on at least a support with an end of said profile projecting from said support and according to a longitudinal extension direction of said profile that is transversal to a direction of movement of a tool means; - locking said profile relative to said support using position-holding means (3, 4, 5); - machining said end by moving said tool means along at least said direction of movement so as to remove material of said profile in accordance with one or more of the following sub-steps: ▪ machining said profile in a "female" configuration, wherein said tool means is moved so as to remove only a part of a central portion of said end in an oblique machining direction relative to said longitudinal direction of said profile and to said direction of movement, so as to perform an oblique cut of said central portion relative to a head edge of at least one surface layer of the profile facing the tool means and so as to maintain two of said surface layers partly projecting and respectively defining an internal face and an external face of said profile when positioned in place; ▪ machining said profile in a "male" configuration, complementary to the "female" configuration, wherein said tool means is moved so as to remove two planar layers (1e, 1f) of said end, and to perform a cut of the whole end so that the removal takes place in an oblique machining direction relative to said longitudinal direction of said profile and to said direction of movement, so as to perform an oblique cut of the whole end relative to an edge that delimits the machined surface from the non-machined surface, the edge being perpendicular to said longitudinal direction in order to be able to obtain a "male-female" type corner joint at said end machined along said oblique machining direction relative to said longitudinal direction. ▪ machining said profile in a "female" configuration, wherein said tool means is moved so as to remove only a part of a central portion of said end in an oblique machining direction relative to said longitudinal direction of said profile and to said direction of movement, so as to perform an oblique cut of said central portion relative to a head edge of at least one surface layer of the profile facing the tool means and so as to maintain two of said surface layers partly projecting and respectively defining an internal face and an external face of said profile when positioned in place; ▪ machining said profile in a "male" configuration, complementary to the "female" configuration, wherein said tool means is moved so as to remove two planar layers (1e, 1f) of said end, and to perform a cut of the whole end so that the removal takes place in an oblique machining direction relative to said longitudinal direction of said profile and to said direction of movement, so as to perform an oblique cut of the whole end relative to an edge that delimits the machined surface from the non-machined surface, the edge being perpendicular to said longitudinal direction in order to be able to obtain a "male-female" type corner joint at said end machined along said oblique machining direction relative to said longitudinal direction.