We all have a standard wall thickness. This thickness is the distance between the wall of the wall that you are currently on and the wall that you will be on. This is how thick the wall is. If you have a thick wall it will be harder to put up a wall for a project. If you have a thin wall then you can place it more easily.

The standard wall thickness varies a bit depending on the type of wall you are building. For example, brick walls are typically thicker than wood walls. So if you are building a brick wall, you will end up with a thick wall, but if you are building a wooden wall, you will end up with a thin wall.