- Project plans
- Project activities
- Legislation and standards
- Industry context
Last edited 27 Dec 2019
The meaning of bay in the construction industry
- When used in relation to a window, (as in ‘bay window’), it describes a part of the construction (in plan and elevation) that protrudes outwards from the main building line and is partly or wholly glazed. Bay windows take various shapes such as curved, rectilinear, polygonal etc.
- An elevation can also be divided into bays, whether these are subtle, eg delineated by rainwater pipes or movement joints, or created by more three-dimensional features such as a crenulated configuration of the walls.
- A bay in a building can also describe an internal area that is demarcated by structural elements. For example, in a building that comprises a grid with columns spaced at 6m-centres in both x- and y-directions, the result on-plan will be the creation of bays measuring 6m x 6m – assuming measurements are taken to the grid centre-lines.
- Bay can also refer to an area that is connected to and forms a small annexe to a larger area, such as a subsidiary area used for some function connected to the activity of the main area, e.g a loading bay.
- Bay (or bays) can also refer to single parking spaces that are created by painted lines on the ground.
 Related articles on Designing Buildings Wiki
Featured articles and news
CLC provides guidance related to product marks, post-Brexit.
Net zero goals incorporated into plans for a new European Bauhaus.
BREEAM offers its resilient approach to Building Back Better.
Country moves one step closer to creating independent body.
BSRIA examines factors driving the industry.
Ensuring designs are developed, validated and can be effectively implemented.
The Homebuyer Survey most suitable for newer homes or simple properties.
Health and safety practices for body and mind.
28 leading bodies set out their vision for the future.
Chancellor announces latest Winter Support packages.
Tapping technology to boost infrastructure and create jobs.
4 ways to ensure certificates are valid.
White elephant construction projects.
How Paul Williams bent over backwards to overcome racial barriers.