What are the three F’s of interior design? Interior experts explain why they are so important

Modern fitted kitchen extension with grey wood-effect walls and black marble kitchen island on parquet floor

Interior design is full of little quips and phrases that help even the world's top designers to remember everything that goes into a well-designed space, for instance, the three F’s of interior design. 

As far as interior design rules go, the three F’s are a simple approach to designing a room that ensures even the littlest details are paid the utmost attention.