Hi All, in need of advice in installing new fence made with Siberian Larch slats of 3.0m length for 21 meters and 5feet high. My question is what is the distance between the posts should be when i use 4×4 timber posts. I cannot find any design or idea other than having to use timber posts every 1.5m so that 3m slats fit neatly on posts. But i am thinking this will have too many holes and posts. Any other suggestions please on post spacing without having to waste timber cutdown?