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.
 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.
 External wall
A wall forming the external enclosure of a building.
 Internal load-bearing wall
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.
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
Featured articles and news
Despite dividing opinion since its 1955 completion, Stalin's gift to Poland, the PKiN, is still Warsaw's most recognisible landmark.
Graduate Engineer Brittany Harris asks, what makes a great place to work?
Mayor Sadiq Khan publishes new guidance aimed at fast-tracking affordable housing projects through planning.
An estimated 90% of our time is spent inside, so could urban allotments be the answer to increasing health and wellbeing?
Why disputes occur and how they can be avoided.
Understand each building and its needs before exploring technical solutions and hiring consultants.
BSRIA report suggests smart connected HVAC is revolutionising the US and could do the same elsewhere.
The project is finally cancelled, following withdrawal of support by the Mayor.
‘Device to Root Out Evil’ - an upside-down, New England-style church built with its steeple in the ground.
The Grenfell Tower fire highlights the need for a holistic approach to fire safety engineering.
Opinion is divided on whether Brexit will undermine mega construction projects in the UK.
Still relevant, and still not fully implemented. Read about the background to, and recommendations of 'Constructing the Team'.