Does anyone have any suggestions for materials to use to create a formal edge to a border. I see railway sleepers everywhere but I am not a fan. I have looked at many other edgings made from recycled rubber tyres, plastic faux stone edgings and many other things but I have to be honest and say none of them grab me very much. Picture of the bed in question below - any suggestions welcome .. I'd like something understated and architectural .. if possible?
many thanks, Bron.