And that makes a wall only good for a simple shed, as there are gaps between each log. On my personal YouTube channel I have a video of making the construction air-tight. Working alone it took me one and a half day of work to get a single log completed. Labor intensive, yes, but then the good thing is that you only need basic tools like an axe and a knife - no nails, no screws, no chainsaws, no sawn timber.