045 We’re going to need a bigger boat! Evening opening of mothballed outpatient areas to reduce crowding in a children’s emergency department Katherine Hance1,2, Mark Lyttle1,2, Sue Humphreys1,2 1Emergency Department, Bristol Royal Hospital for Children, Bristol, UK 2Faculty of Health and Applied Sciences, University of the West of England, Bristol, UK Abstract Background EDs are increasingly crowded, with negative impact on care quality. This is multifactorial, but tends to peak during evenings.