Dictionary
Styles
Pritzker
RIBA
References
CAD Scale Factors
AIA Numbering System
CMU Block Sizes
Dictionary
Styles
Pritzker
RIBA
CAD Scale Factors
AIA Numbering System
CMU Block Sizes
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contractor's option
A written provision in the contract documents giving the contractor the option of selecting certain specified materials, methods or systems without changing in the contract sum.
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