An airport made of bamboo? A tower reaching 20 metres high? For many years, bamboo has been mostly known as the favourite food of giant pandas, but a group of engineers say it’s time we took it seriously as a building material, too. This week the Institution of Structural Engineers called for architects to be “bamboo-ready” as they published a manual for designing permanent buildings made of the material, in an effort to encourage low-carbon construction and position bamboo as a proper alternative to steel and concrete. Bamboo has already been used for a number of boundary-pushing projects around the world. At Terminal 2 of Kempegowda international airport in Bengaluru, India, bamboo tubes make up the ceiling and pillars. The Ninghai bamboo tower in north-east China, which is more than 20 metres tall, is claimed to be the world’s first high-rise building made using engineered bamboo.