How Big Is 400 Square Feet?
A 20 by 20 space, about the size of a small two-car garage. See how it fills up below.
Drag to turn. The figure is a 5 ft 9 in person.
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400
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ft
400 sq ft in numbers
- As a square: 20.0 ft by 20.0 ft (6.1 m per side)
- In other units: 400 sq ft · 37.2 m² · 0.0092 acres
- Common layouts: 20 × 20 ft, 16 × 25 ft, 10 × 40 ft
- King beds (6.3 × 6.7 ft): 9.5 by area
- Parking spaces (9 × 18 ft): 2.5 by area
"By area" compares total area. How many actually fit depends on shape, which the drawing above shows.
400 square feet is a 20 by 20 foot square. A two-car garage is often a little bigger (24 × 24 ft is common), so 400 square feet is a tight fit for two cars and comfortable for one car plus storage.
As living space it is a roomy studio or a small one-bedroom apartment. A standard 40-foot shipping container has about 300 square feet of floor, so 400 is noticeably larger than a single container home.
Where you see it: small two-car garages, one-bedroom apartments, accessory dwelling units, large living rooms.