Interior design with doors, frames and superior quality fittings play no less an important role for a building’s architecture than does its facade and outward appearance. Aluminium door frames have established both their importance and versatile functional range. Küffner aluminium frames come into their own wherever, for functional or aesthetic reasons, steel or wooden frames cannot be installed. Küffner dominates the market with its range of wall sockets – from minimalist frame solutions through to comprehensive renovation frames.