the design rule “60, 30, 10”
Designers have used a scale known as “60, 30, 10” for years. It’s simply a definition for the proportions of a design space.
The largest proportion of your design space has the largest impact. That is given the proportion of 60%. For the façade of your home this is the exterior walls.
The next proportion of the design space is given the description of 30%. Although not as large as the 60%, it still has a large impact on the overall look of the design. For the façade of your home this is the roof tiles.
The final proportion of the design space is 10%. This is the least dominant area of the space, however no less important. In fact this selection can make or break the design of your home. For the façade of your home this is the gutter, fascia, windows and doors.
See also