drop ring
A ring which is used as a handle to operate a lock or latch; the ring remains in a dropped […]
Glossary
dropped roof
The roof of an addition to a house, usually a flat surface of single pitch with its upper edge somewhat
Glossary
dropped girt, dropped girth
A girt which is dropped below the floor joists and supports them.
Glossary
drop panel form
A concrete form which is so erected as to provide the necessary support, shape, and finish for a drop panel.
Glossary
drop panel
On the lower side of a flat concrete slab, the thickened portion which surrounds a column, column capital, or bracket.
Glossary
drop-out ceiling
A suspended ceiling system having listed translucent or opaque, heatsensitive panels; when subject to heat, these panels drop from the