double-headed nail, scaffold nail, form nail
A nail having two heads, one above the other; the upper head is driven with a hammer, and it is […]
Glossary
Glossary
Glossary
double-hung window, double-hung sash window
A window having two vertically sliding sashes, each closing a different part of the window; the weight of each sash is counterbalanced for
Glossary
double-lock seam
A type of seam between the edges of adjacent metal sheets; formed by making a double fold, then dressing down to form a
Glossary
door knocker
A hinged knob, bar, or ring of metal, attached to the outside of an exterior door, enable a person to announce
Glossary
Doric order
In Classical architecture and derivatives, the column and entablature developed by the Dorian Greeks. Characterized by sturdy proportions, a simple capital, a frieze usually
Glossary
dormer window, dormer
A vertical window which projects from a sloping roof, placed in a small gable.
Glossary
double course, doubling course
A double layer of shingles or the like, one over the other, providing a minimum coverage of two thicknesses.