Radical 63 meaning "door" or "house" is 1 of 34 Kangxi radicals (214 radicals total) composed of 4 strokes.
In the Kangxi Dictionary there are 44 characters (out of 49,030) to be found under this radical.
Characters with Radical 63
Literature
Fazzioli, Edoardo (1987). Chinese calligraphy: from pictograph to ideogram: the history of 214 essential Chinese/Japanese characters. calligraphy by Rebecca Hon Ko. New York, 1987: Abbeville Press. ISBN0-89659-774-1.