Calibrated Clearances, Wall-Scale Proportions & TV Ergonomics
Use a 36–42 in (91–107 cm) primary pathway as a context-dependent planning reference, and keep 14–18 in (36–46 cm) between sofa and coffee table for comfortable reach. Scale the sofa to roughly two-thirds of the main wall (60–67%), center a 4K TV at 42–48 in (107–122 cm) above finished floor, and set viewing distance around 1.2–1.6× the screen diagonal. These are visual planning targets, not universal rules; verify door swings, traffic, accessibility, furniture dimensions, and local code on site.
