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Building components

Ceiling & Void Elements

The joists, hangers, independent frames, voids and access provisions that form the plane above a room and the space behind it.

10 entries in this category.

Overview

About this category

A ceiling is a plane and, usually, a space. The space is where services run, where sound passes between rooms if nothing stops it, and where access is either provided or regretted. Treating the void as an element in its own right is what makes those consequences visible.

These entries describe the framing, the void and the access provision as positions. They do not specify hanger types, spacings, void depths or acoustic performance.

Boundaries

What this category covers, and what it does not

  • Covers the framing that forms a ceiling plane, the void behind it, and provisions for reaching that void.
  • Does not cover ceiling tiles, grids, plasterboard or acoustic products, which are published material entries.
  • Does not cover ceiling ASSEMBLIES or service-void systems, which are building systems.
  • States no spacing, void depth, load, fire rating or acoustic value.

Browse

Forms and roles in this category

Descriptive labels for what is here. They are a way of reading the list, not a filter and not a ranking.

Forms:Board or sheetConnector or supportLinear memberProfile or trimVoid or cavity
Roles:AttachmentFinishProtectionSeparationStructureSupportTermination

Entries

Ceilings & Voids components

Every entry in this category. Each explains what the element is, what it depends on, and how it relates to materials, systems and junctions.

Board or sheetAccess Panel →A removable closure in a ceiling, wall or floor that allows a concealed space or component to be reached.Connector or supportCeiling Hanger →A component suspending a ceiling from the structure above, creating a void between them.Linear memberCeiling Joist →A horizontal member carrying a ceiling, which in a pitched roof commonly also ties the feet of the rafters.Void or cavityCeiling Void →The space between a ceiling and the structure above it, which carries services and is a continuous path through a building.Linear memberIndependent Ceiling Frame →A ceiling structure carried on its own supports rather than from the floor above, so no rigid path exists between them.Board or sheetCeiling Bulkhead →A local drop below the main ceiling plane, formed as a lined enclosure around services, structure or a change of level.Linear memberCeiling Grid Tee →The exposed inverted-T member of a demountable ceiling, carrying the tiles on its flanges and forming the ceiling's visible module.Profile or trimCeiling Perimeter Trim →The profile at the edge of a ceiling that closes it against the surrounding wall and gives the ceiling plane a defined line.Void or cavityCoffer →A panel of ceiling set back above the surrounding plane, bounded by the ribs, beams or margins that define the recess.Connector or supportResilient Mounting →A deliberately flexible connection between a lining or ceiling and the structure behind it, so that vibration in the structure is not passed straight into the surface.

Related reference libraries

Components are what materials become and what systems are made of. The three libraries answer different questions and are kept deliberately separate.

Materials Library →Building Systems →