There is a growing focus on the psychological impact of materials. Recent studies suggest that glass and natural materials have high "restorative potential," helping to reduce stress and improve attention within the home.

Professional home decoration often relies on mathematical and visual rules to create a sense of harmony:

To maintain visual balance, experts suggest keeping seating heights (sofas, armchairs, dining chairs) within a 4-inch range of one another.

A common strategy for mixing styles is the 70-20-10 rule : 70% of a space should be a dominant style (typically for large furniture), 20% a secondary style, and 10% a "wildcard" for accessories and art. Modern Trends for 2025–2026