London Heathrow Terminal 5 building is 396 metres (1,300 ft) long, 176 metres (580 ft) wide and 40 metres (130 ft) tall. It is the largest building in the Terminal 5 complex and is the biggest free standing building in the United Kingdom.
Terminal 5 has four storeys, covered by a single-span steel frame roof, with glass facades angled at 6.5 degrees.
The area covered by Terminal 5 roof is the size of five football (soccer) pitches, and each section weighs 2,200 tonnes.