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What size is a 300 sq ft room?

A 300 sq ft room could be 15x20, 12x25, or roughly 17x17 if square. It's a large single room by residential standards: bigger than most primary bedrooms (which average 200-250 sq ft), about the size of a one-car garage plus a bit more, or a typical studio apartment's entire living space.

Furnished as a living room, 300 sq ft handles a full sofa, loveseat, media console, and coffee table without crowding. As a studio, it fits a bed, small sofa, dining nook, and kitchenette, which is why 300 sq ft is a common threshold for micro-apartments. For visual reference, it's about one-eighth of a tennis court. Any length-width pair multiplying to 300 qualifies, and proportions change how the space lives: 10x30 feels like a corridor while 15x20 feels open.

If you're evaluating a floor plan and want to know whether a room actually delivers its claimed 300 sq ft, tracing it in MeasureFloorPlan gives you the exact area rather than the listing's rounded estimate.