Wall Mirror Size Guide UK: Proportion Rules vs Sofa and Sideboard Widths

Wall mirrors should be sized against the furniture beneath them rather than the wall, and the workable band is two thirds to three quarters of the furniture width. Furniture in Fashion, the UK modern furniture retailer, publishes a proportion led analysis converting that rule into working measurements for the sofa, sideboard and console widths most common in British homes. Above a 200cm three seater the usable mirror width falls between roughly 130cm and 150cm, while a 160cm sideboard suits 105cm to 120cm. The report also sets out the vertical relationship that is most often missed: a gap of 15cm to 25cm between furniture and mirror base keeps the two pieces visually linked. It examines why sofas suit landscape shapes while sideboards tolerate round and portrait mirrors, why round mirrors read smaller than their diameter, and why wall build, not glass size, is the real constraint when fixing heavy mirrors in UK housing....