Planning glossary
Tolerance
The permitted or expected variation from a nominal measurement, distinct from display rounding.
Example
Showing three decimals does not make a tape-measured wall accurate to a thousandth of a meter.
Related concepts
Canonical unit
The single internal measurement unit used as the source of truth while the interface displays other units.
Read definitionDatum
A fixed reference point, line, or elevation from which other measurements are located.
Read definitionRough opening
The framed opening prepared to receive a door, window, or other component, based on product instructions and installation requirements.
Read definitionUse the term in context
Definition boundaryThis planning definition is not a substitute for the definition in an adopted code, standard, contract, manufacturer instruction, or professional document. Confirm the controlling meaning for the project.