The four-inch rule in interior design typically refers to clearance guidelines regarding furniture placement, leg height, and spatial flow, ensuring rooms feel balanced and accessible. One common application dictates that furniture pieces like sofas, armchairs, and tables should maintain at least a four-inch clearance from walls or adjacent pieces to prevent a cramped layout and allow proper air circulation. Another design guideline suggests that rugs should extend at least four inches beyond the front legs of furniture groupings to create a cohesive, anchored visual zone rather than appearing disconnected or floating awkwardly on the floor.
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