thumb|right|Oak clapboards lean-to attic Ephraim Hawley House, United States thumb|Clapboard siding wood stain|stained dark brown thumb|Captain William Smith House at Minute Man National Historical Park, United States, a restored [[saltbox house with unpainted clapboard siding]]
thumb|right|Oak clapboards lean-to attic Ephraim Hawley House, United States thumb|Clapboard siding wood stain|stained dark brown thumb|Captain William Smith House at Minute Man National Historical Park, United States, a restored [[saltbox house with unpainted clapboard siding]]
Clapboard ( or ), also called bevel siding, lap siding, and weatherboard, with regional variation in the definition of those terms, is wooden siding of a building in the form of horizontal boards, often overlapping.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).