1920 – 1939
The overall look of a 1920s and 1930s front door displayed another distinct change in style. The mid-rail and letterbox (which would previously have been around waist height) shifted further up the door, making the proportions one-third above and two-thirds below. Fashions in panelling were moving on as well, and it became more usual to see three vertical panels in the lower part of a door. Door frames often had a single wing window, with brickwork below.
Mock-Tudor style became popular in the 1930s, with new housing sometimes built with Tudor-style black beams. Some 1930s front doors reflected this look, with solid-looking wooden panelling that was often stained rather than painted.