box sill
A type of sill, 1 used in frame construction; a header joist, nailed to the ends of the floor joists, rests on […]
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brace table, brace scale, brace measure
A table indicating the length of hypotenuses for right isosceles triangles with legs of various lengths; used by carpenters in cutting wood braces
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bond header
In masonry, a bondstone that extends the full thickness of the wall; also called a throughstone.
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book matching, herringbone matching
The assembling of wood veneers from the same flitch so that successive sheets are alternated face up and face down. In figured
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booster pump
An auxiliary pump which is used in a piping system to increase or maintain the pressure in the system.
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bonnet roof
A roof having a double slope on all four sides, the lower slope being less steep than the upper slope; often extends
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board-and-batten construction
Wall construction for a timber-framed house in which the exterior covering consists of closely spaced boards set vertically, with narrow wood strips covering