The model is executed in 3ds Max 2017 and contains also files max (2014) and .fbx files.
Contour tiles have an external and internal side and this should be taken into account when joining contour plates.
Clone the contour tile in the copy mode.
After the construction of the contour tile is completed it is mandatory to apply the UVW modifier to the group with the contour tile with the cube in the scene.
The tile is completely geometry and the plane available in the scene serves as a trowel.
In the 3 picture shows an example of the application of this tile in the interior.