Standard sash window sizes
Sliding sash windows are a classic style of window, perfect for embellishing period properties. During the Victorian and Edwardian periods, the standard width for them was approximately 4 feet (1.2m). As most of the UK properties with sash windows were built during this time, this figure is about as close to a standard size as you can get. However, they are also available in other standard widths and a number of standard heights, which are listed below.
36 inches (91.44cm), 48 inches (121.9cm), 60 inches (152.4cm), 72 inches (182.9cm), 84 inches (213.4cm)
24 inches (60.96cm), 36 inches (91.44cm), 48 inches (121.9cm), 60 inches (152.4cm)
Like other types of windows, they can also be uniquely made to measure. This is worth bearing in mind because their size was more varied prior to and during the Georgian era. So, if you're replacing sash windows on these types of property, they might need to be specially made. Standard and made-to-measure sash windows are, however, available from us here at Everest.