Can I go key less? Whatever type of door you have, there is almost certainly a suitable Yale digital lock to fit. Just check to see if your door is timber, PVCu or composite using the following information: Plastic fantastic: A PVCu door PVCu doors are the most common form of replacement doors and feature a multipoint lock running the length of the door. A multipoint lock often locks in three places and features rollers to ensure a tight, weatherproof seal, making for a highly efficient and more secure locking solution. PVCu doors are often made of a white plastic resin, but are available in other finishes. Beautiful and brawny: A composite door Composite doors – like PVCu doors – also feature a multipoint lock, which secures in three places to make for a highly efficient and more secure locking solution. Composite doors are finished in a woodgrain effect, to give them a more natural timber look. They can be finished in either wood colour effect (such as mahogany or oak), or countless coloured foil options. Knock on wood: A timber door A traditional timber door usually features a nightlatch which has a single locking point that is often round-edged and spring loaded. This can be deadlocked at night for additional security. Timber doors can be fabricated from softwood or hardwood, and can include glazed panels and a moulded fascia. Finished in either a natural glaze or a coloured paint, a timber door can be easily identified by the distinctive sound of knocking on wood.