Freefoamand#039;s replacement fascia double-ended corners are supplied in 600mm length and coated in a smooth storm grey (RAL 7045).Double-ended corners are used to cover the expansion gap between two fascia boards at the corners of the eaves. This can be achieved by trimming the corner to size, set it in place, and seal it with superglue.Please check out this video for a quick introduction to installing corners and joiners.