400 square feet is roughly the size of a small to mid-sized one-car garage or a compact studio apartment. In metric terms, 400 ft² is about 37 square meters. Context and practical feel

• Compared to typical rooms: 400 ft² can accommodate a living area, a small kitchen nook, and a separate sleeping area in a studio layout, or it could function as a roomy two-bedroom layout if configured efficiently.
• Layout considerations: furniture planning and zoned spaces (living, sleeping, cooking) can help maximize the feel of space. Using compact furniture, vertical storage, and multifunctional pieces often makes the area more usable.

If you’d like, provide a rough shape (e.g., rectangle 20 ft by 20 ft, or an L-shape) and any furniture you need to fit, and I can help sketch a practical layout.