class-B door
A door having a 1- or 11 €2-hr fireendurance rating, suitable for use as a closure in a class-B opening, […]
Glossary
Glossary
class-A door
A door having a 3-hr fireendurance rating, suitable for use as a closure in a class-A opening.
Glossary
class A, B, C, D, E, F
A classification applied to fire doors, fire windows, roof coverings, interior finishes, places of assembly, etc., to indicate gradations of
Glossary
Clarke beam
A type of built-up wood beam consisting of joists or planks which are bolted together and then reinforced with wood
Glossary
clarification drawing
A graphic interpretation of the drawings or other contract documents issued by the architect as part of an addendum, modification,