- Project plans
- Project activities
- Legislation and standards
- Industry context
Last edited 30 Apr 2018
 Wall definition
- The surface of glazing (except glazing in doors).
- Any part of a ceiling which slopes at an angle of more than 70º to the horizontal.
But a wall does not include:
- Doors and door frames.
- Window frames and frames in which glazing is fitted.
- Architraves, cover moulds, picture rails, skirtings and similar narrow members.
- Fireplace surrounds, mantle shelves and fitted furniture.
However, Approved document C, Site preparation and resistance to contaminants and moisture, suggests that a wall is:
'Any opaque part of the external envelope of a building that is at an angle of 70° or more to the horizontal.'
For more information, see What are walls made of?
 Buttressing wall
A wall designed and constructed to afford lateral support to another wall perpendicular to it, support being provided from the base to the top of the wall.
A wall constructed from two skins of masonry, the outer skin of which can be brickwork or blockwork and the inner skin of which is generally of blockwork, separated by a cavity to prevent the penetration of moisture and to allow for the installation of thermal insulation.
 Compartment wall
A wall constructed to create a compartment, forming a barrier to the spread of smoke, heat and toxic gases.
See Curtain wall for more information.
A dwarf wall is the term used to refer to a low wall that is often used as a garden wall, fence or as the base of a conservatory or porch structure. Generally, it can be applied to any wall that is less than one-storey in height, but typically they are less than a metre tall.
For more information, see Dwarf wall.
A wall forming the external enclosure of a building, including part of a roof pitched at an angle of more than 70° to the horizontal, if that part of the roof adjoins a space within the building to which persons have access (but not access only for repair or maintenance).
 Green wall
See Green walls for more information.
 Internal load-bearing wall
See Load-bearing wall for more information.
A non-load bearing wall that separates the internal spaces of a building.
See Partition wall for more information.
A wall that stands on the lands of 2 or more owners or a wall that is on one owner's land but is used by 2 or more owners to separate their buildings.
See Party wall for more information.
See for example: Secant pile wall.
A wall comprising an outer skin of panels and an airtight insulated backing wall separated by a ventilated cavity. Some water may penetrate into the cavity but the rainscreen is intended to provide protection from direct rain.
See Rainscreen for more information.
 Separating wall
A wall or part of a wall which is common to adjoining buildings.
 Solid wall
 Supported wall
See Trombe wall for more information.
 Related articles on Designing Buildings Wiki
- Barrier wall system.
- Building fabric.
- Crosswall construction.
- Curtain wall.
- Diaphragm wall.
- Dwarf wall.
- Floor definition.
- Infill panel walls.
- Load-bearing wall.
- Partition wall.
- Party wall.
- Preventing wall collapse.
- Raised floor.
- Rubble masonry.
- Suspended ceiling.
- Trombe wall.
- Types of structure.
- Wall ties.
- Weep hole.
- What are walls made of?
Featured articles and news
Check out our list of the 90 most unusual buildings of all time.
The government is to set a personal consumption target to reduce water use.
BSRIA calls for more education to promote fuels that are fit to burn.
Michael Gove admits air pollution is making people ill and shortening lives.
BRE call for a clearer, focused drive for the delivery of sustainable, quality developments.
Proposals for a 140m high observation wheel next to the Tyne.
Consistently one of our most popular articles - so just how much do you know about BoQ's?
Significant updates encourage whole building life cycle assessment and recognise products with Environmental Product Declarations.
Gustavo Giovannoni’s role in integrating modern planning requirements into historic town centres.
Desipite Hackitt's recommendations, the government are to consult on combustible cladding.