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Opening Thickness (OPK)
DGIF baseline 2026-1, the latest. Earlier baselines: timemap.
RDF: opk.ttl
- Name
openingThickness- Datatype
- Real
- Definition
- The dimension of an opening measured perpendicular to the plane of the opening.
- Description
- For example, the thickness of a door frame. An opening may be on man-made or natural features. The opening thickness of a revolving door would be the diameter of the tube which surrounds the panels or wings of the door. The thickness of a cave opening would be measured between the exterior rock face and the interior surface of a chamber, passage, or other transitional feature.
- Accepted
- 2013-10-18
- Defined by
- DFDD
- Physical quantity
- length
- Recommended unit
- Metre (m)
- Used by
- AQ090 Entrance and/or Exit
Source: DGIF 2026-1 QEA model, DGIWG. Standard: DGIWG 206-3. Licence: CC BY 4.0, © DGIWG.