How do I choose the size of a door canopy?

Our starting size is 1600 mm wide with a 1100 mm projection, which suits a typical front door. For double doors, side entrances and shopfronts we make wider canopies with extra brackets, and where rain drives in we increase the projection. Send us the door width, the projection you would like and a photo of the wall, and we confirm the size, roof slope and fixing method before production.