We all know building sites can be dangerous: the building trade lost 43 colleagues to avoidable accidents in 2015/16. But there’s an even bigger killer out there: suicide. It kills more than 6,000 people every year in the UK (nearly 11 in every 100,000). There are around 2.6 million construction workers in the UK. That means, on average, 280 will take their own life each year.