Medina Joinery manufacture Accoya Bifold doors in our workshop on Hayling Island. Accoya® wood is the material of choice for windows and doors. Not only does it have extremely low thermal conductivity but it is more durable and dimensionally stable than the best tropical hardwoods. It can be opaque coated or, for those wishing to enjoy the natural look of wood, transparent coated. Accoya®’s low maintenance requirements add to its cost effectiveness and environmental credentials.