Most capacious building
Who
Boeing
What
13400000 square metre(s)
Where
United States (Everett)
When
1968
The world's largest building by volume is the Boeing Company's main assembly plant in Everett, Washington, USA, which has a total volume of 13.4 million m³ (472 million ft³), and an indoor floor area of 39.8 ha (98.3 acres). The building has grown massively since it was completed in 1968, when its volume was 5.564 m³ (196.476 million ft³). The site covers some 414 ha (1,025 acres).