ShutterKits DIY Installation, Internal Aluminium Shutters are the future of plantation shutters, combing ingenuity, innovation, durability and style. Our Internal Aluminium Shutter offer the widest single expanse of any interior shutter and with its clean modern lines and matt powder coat finish, these shutters have all the benefits of premium shutters that can also be used in severe wet areas. ShutterKits Internal Aluminium Shutters are custom made to size and come fully assembled, with the options of frames – that can be pre-drilled, hinges and catches all included in the price.