Illustration: David Wyffels

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Coffee Tables
Most sofa seats are 17 to 20 inches high, so an adjacent coffee table should be 15 to 18 inches high. Perfect height for putting your feet up ... not that our mom encourages that.

Allow around 18 inches between the coffee table and sofa edge to provide comfortable leg room—that’s close enough to set down drinks or reach snacks without straining or getting up.