Hagebau, the German builders' merchant and DIY group, grew its sales by 4.0 per cent to € 1.74 bn in the first five months of 2010. Hagebau Germany increased its centrally invoiced sales (including participating interests) by 3.8 per cent to € 1.65 bn. On the retail side (288 Hagebaumarkt stores, 18 Werkmarkt outlets and 30 other DIY stores), centrally invoiced sales were 1.0 per cent down, while they rose by 7.2 per cent on the trade side.