1. The total floor space in a building or property that is available for actual use, excluding common areas, walls, mechanical spaces, and structural elements
The net usable area of the office was 5,000 square meters after deducting hallways and restrooms.
A área útil líquida do escritório era de 5.000 metros quadrados após deduzir corredores e banheiros.
2. In real estate, the space that tenants can actually occupy and use for their intended purposes
The apartment's net usable area was smaller than expected due to thick walls.
A área útil líquida do apartamento era menor do que o esperado devido às paredes espessas.