Method for establishing a post-and-beam connection between a front face of a beam and a longitudinal side of a post, comprising the steps of: a) providing a post, wherein one or more projection(s) (4a, 5; 4b, 5) protrude from a longitudinal side of the post; b) providing a beam, wherein a front face of the beam comprises a recess; wherein the one or more projection(s) (4a, 5; 4b, 5) on the longitudinal side of the post and the recess on the front face of the beam are designed in such a way, that the one or more projection(s) (4a, 5; 4b, 5) is or are, preferably completely, insertable into the recess by means of a relative movement of the beam with respect to the post, which runs transversely, in particular perpendicularly to the longitudinal axis of the beam, via at least one opening in the boundaries of the recess, which leads from a longitudinal side of the beam into the recess, and that then, by means of a rotation of the beam in a first direction of rotation around an axis of rotation running parallel to the longitudinal axis of the beam, the one or more projection(s) (4a, 5; 4b, 5) and the recess can be positioned relative with respect to each other in such a way that after the rotation via the one or more projection(s) (4a, 5; 4b, 5) and the boundaries of the recess a form fit between the post and the beam is present in all direction perpendicular to the longitudinal axis of the beam as well as in the first direction of rotation around the longitudinal axis of the beam and that the beam thereby assumes its intended position with respect to the post, c) inserting the one or more projection(s) (4a, 5; 4b, 5) via the at least one opening into the recess on the front face of the beam by means of a relative movement of the beam with respect to the post transversely, in particular perpendicularly to the longitudinal axis of the beam, in particular in such a way that the one or more projection(s) (4a, 5; 4b, 5) is or are completely received in the recess; and then d) rotating the beam with respect to the post in the first direction of rotation around an axis of rotation running parallel to its longitudinal axis, by means of which the one or more projection(s) (4a, 5; 4b, 5) and the recess are positioned relative with respect to each other in such a way that via the one or more projection(s) (4a, 5; 4b, 5) and the boundaries of the recess, a form fit between the post and the beam is present in all directions perpendicular to the longitudinal axis of the beam as well as in the first direction of rotation around the longitudinal axis of the beam and by means of which the beam is brought into its intended position with respect to the post. a) providing a post, wherein one or more projection(s) (4a, 5; 4b, 5) protrude from a longitudinal side of the post; b) providing a beam, wherein a front face of the beam comprises a recess; c) inserting the one or more projection(s) (4a, 5; 4b, 5) via the at least one opening into the recess on the front face of the beam by means of a relative movement of the beam with respect to the post transversely, in particular perpendicularly to the longitudinal axis of the beam, in particular in such a way that the one or more projection(s) (4a, 5; 4b, 5) is or are completely received in the recess; and then d) rotating the beam with respect to the post in the first direction of rotation around an axis of rotation running parallel to its longitudinal axis, by means of which the one or more projection(s) (4a, 5; 4b, 5) and the recess are positioned relative with respect to each other in such a way that via the one or more projection(s) (4a, 5; 4b, 5) and the boundaries of the recess, a form fit between the post and the beam is present in all directions perpendicular to the longitudinal axis of the beam as well as in the first direction of rotation around the longitudinal axis of the beam and by means of which the beam is brought into its intended position with respect to the post.