戶 Radical 63 — a single-leaf door; a household
hù (fourth tone, falling)
a single-leaf door; a household
Radical 634 strokes1 characters
Also written 户 · 戸 — the same radical in a different position inside the character.
Where the shape comes from
One leaf of the double gate 門, drawn on its own — a modest house has one door where a compound has two. A single door stands for a single household, which is why 户 also counts families on a register: 户口. It heads 房, 所 and 扇.