Planning glossary
Rough opening
The framed opening prepared to receive a door, window, or other component, based on product instructions and installation requirements.
Example
A window's rough opening is typically larger than its visible glass and may differ from its nominal label.
Related concepts
Clear opening
The unobstructed usable opening after the door, frame, hardware, and projections are considered.
Read definitionHeader
A structural element spanning an opening and transferring load to supports at its sides.
Read definitionFinish face
The visible completed surface used for a dimension, distinct from framing face or centerline.
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.