been moved towards the edge of the base plate thus the post is in the desired position and the nuts can now be tightened in fig3 a and 3 b the retaining portion has been measured for a post having square cross section in fig3 c l shaped brackets 16 are parallel and the upward pointing flanges are pointing to the same directionso a post having rectangular cross section can be fixed in between the flanges here l shaped brackets 16 have been turned and thus pole 28 can be turned in order to achieve the required position if necessary the long flanges of the l shaped brackets can be set opposite one another in which case a plank or a board can be attached to the retaining portion not shown in fig3 d and 3 e l shaped brackets 16 have been positioned perpendicular to each other which can be used for example in the corners of fence structures or other buildings in fig3 f one of the l shaped brackets 16 is attached to alternative slot 27 for the sake of clarity the bolts and nuts are not shown in fig3 a 3 f fig4 shows part of fence 29 where posts 28 have been fixed to the ground using the ground anchors described in these specifications here post 28 is formed by two planks 30 each of which is a fixed part of a separate fence element thus by attaching two planks to each other two consecutive fence.