A wood member which binds a pair of principal rafters at the bottom.
Open-joint drain tiles laid to distribute septic tank effluent over an absorption area or to provide subsoil drainage in wet areas.
Driving nails at an angle into corners or other joints.
Carpentry joint in which the jutting edge of one board fits into the grooved end of a similar board.
A bend in a water pipe to hold water so gases will not escape from the plumbing system into the house.
The horizontal part of a stair step.
A combination of structural members usually arranged in triangular units to form a rigid framework for spanning between load-bearing walls.
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