Casual comfort comes into focus in the family room, featuring a plush Verellen sectional—upholstered in Peter Dunham Textiles’ Taj linen—and Dmitriy & Co’s graceful Milano lounge chair. Paired with vintage chairs from 1stdibs, a game table from ABC Carpet & Home gets plenty of use on cloudy days. The shiplap walls are typical of Sullivan’s Island; large windows by Millwork Artisans capitalize on subtropical views.