38+ Modern Western Style Interior Design. When you conjure images of western interior designs, you probably. Thousands of styles ship free in just 2 days. Notice how the room appears to be truly and genuinely western style because of the presence of the customized wooden flooring and walls. This minimalist style room has two noticeable patterns on the floor and backsplash. The southwestern style originates from the warm and bold designs that can be found in the southwest parts of the usa with a special mention to arizona and new mexico. Modern design is a fairly broad style, including any space with clean lines and simple color palette. You won't hear the words soft or intimate used when describing this unique interior design style. Interior design is defined as, the art or process of designing the interior decoration of a room or building.. See more ideas about rustic house, house design, western interior design.While a process may include a set of rules or stringent guidelines, the concept of art is much more fluid and subjective.