The covering or siding of a building, formed of boards lapping over one another, to exclude rain, snow, etc.

Boards adapted or intended for such use.

a long thin board with one edge thicker than the other; used as siding by lapping one board over the board below

the overlapping shaped timber planks covering the framework of a post mill body, smock or cap.

Weatherboarding is the cladding or ‘siding’ of a house consisting of long thin boards that overlap one another horizontally on the outside of the wall. They are of rectangular section with parallel sides, as distinct to North American riven clapboards of triangular or feather-edged section, where the upper edge is the thinner one.