CARVED DESIGNS more  -->

Carved designs also follow distinct rules. The primary form lines are distinct from the secondary and tertiary form lines. The form spaces (the spaces between the form lines that tend to follow the same rules as the form lines) often are a more important part of the design in relief carvings.

Above is a low relief carving diagram and to the right are examples of this style of carving. 

Above is an example of low relief carving on a greased dish.

The same principles of Northwest Coast design are found on models of NWC style houses.