Which smart lock is right for me? /Yale/Yale_co_uk/Smart_Living/Which_Smart_Lock/WhichLockBanner.jpg Whatever type of door you have, there’s a smart lock to fit your home. Use the simple guide below to see which locks right for you. PVCu? 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. Composite? Composite doors also feature a multipoint lock, and are often finished in a woodgrain effect, to give them a more natural timber look. Timber? A traditional timber door usually features a nightlatch, which has a single locking point that is often round-edged and spring loaded. 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.