Moulding
Mouldings, also known as covings, are decorative strips used to cover transitions between surfaces in aesthetically pleasing ways. In classical architecture they are commonly found on columns and entablatures. Traditionally, mouldings were carved in marble or stone, but today, they are also commonly made from timber, plaster and plastics. Mouldings come in a variety of shapes, profiles and forms.
- Astragal: A small convex moulding.
- Bead: A convex moulding, usually semi-circular. There are a variety of different types of beads, such as angle bead, nosing bead, double bead and so on.
- Beak moulding: A moulding that is shaped into a beak-like form.
- Bed-mould: Part of the cornice that appears under the projecting edge.
- Congé: A concave moulding.
- Cyma: Sometimes called a wave moulding, this is a double curvature that is used as the uppermost element in a cornice.
- Echinus: Sits below the abacus and above the necking of a column.
- Ovolo: A convex moulding, also known as a ‘quarter round’.
- Reed: A series of convex mouldings running parallel to each other. Also known as reed moulding or reeding.
- Scotia: One of the elements used in the attic base of columns, it is a concave moulding between two fillets.
- String course: A horizontal moulding usually made from a series of complex profiles.
- Three-quarter hollow: A three-quarter concave profile.
- Three-quarter moulding: A three-quarter convex profile.
- Thumb moulding: A thumb-shaped moulding.
- Torus: A semi-circular, convex moulding that is one of the distinctive elements in the attic base of columns.
NB Drawing for Understanding, Creating Interpretive Drawings of Historic Buildings, published by Historic England in 2016 defines mouldings as: 'Continuous projecting or inset architectural embellishment. Mouldings are used to enrich, emphasise and separate architectural components by casting shadows and otherwise making the item they form part of visually distinct from their surroundings. They are to be found on doorways, structural beams and other parts of buildings. Their distinctive style is often used as a means of dating the part of the building on which they are found.'
[edit] Related articles on Designing Buildings
- Architrave.
- Balustrade.
- Bas-relief.
- Classical orders in architecture.
- Corbel.
- Cornice.
- Dogtooth.
- Elements of classical columns.
- Entablature.
- Fillet.
- Fluting.
- Fret.
- Frieze.
- Hood moulding.
- Keel moulding.
- Pedestal.
- Pediment.
- Pilaster.
- Rinceau.
- Roman Classical orders in architecture.
- Running dog pattern.
Featured articles and news
Futurebuild and UK Construction Week London Unite
Creating the UK’s Built Environment Super Event and over 25 other key partnerships.
Welsh and Scottish 2026 elections
Manifestos for the built environment for upcoming same May day elections.
Advancing BIM education with a competency framework
“We don’t need people who can just draw in 3D. We need people who can think in data.”
Guidance notes to prepare for April ERA changes
From the Electrical Contractors' Association Employee Relations team.
Significant changes to be seen from the new ERA in 2026 and 2027, starting on 6 April 2026.
First aid in the modern workplace with St John Ambulance.
Ireland's National Residential Retrofit Plan
Staged initiatives introduced step by step.
Solar panels, pitched roofs and risk of fire spread
60% increase in solar panel fires prompts tests and installation warnings.
Modernising heat networks with Heat interface unit
Why HIUs hold the key to efficiency upgrades.
Reflecting on the work of the CIOB Academy
Looking back on 2025 and where it's going next.
Procurement in construction: Knowledge hub
Brief, overview, key articles and over 1000 more covering procurement.
Sir John Betjeman’s love of Victorian church architecture.
Exchange for Change for UK deposit return scheme
The UK Deposit Management Organisation established to deliver Deposit Return Scheme unveils trading name.
A guide to integrating heat pumps
As the Future Homes Standard approaches Future Homes Hub publishes hints and tips for Architects and Architectural Technologists.
BSR as a standalone body; statements, key roles, context
Statements from key figures in key and changing roles.
Resident engagement as the key to successful retrofits
Retrofit is about people, not just buildings, from early starts to beyond handover.





















