- Project plans
- Project activities
- Legislation and standards
- Industry context
Last edited 13 Jan 2020
A chase is a groove or channel cut into an existing layer or substrate to accommodate services such as pipes or cables. Chasing is the act of cutting a chase and is usually undertaken in solid wall or solid floor construction.
The width of the chase will depend on the type and number of the services to be enclosed but typically is not usually wider than 100mm. It is not normal practice to cut chases for large size services such as rainwater or sewage pipes.
Chases can be cut into brick, plaster and concrete-block walls. They can also be cut into the screeds of concrete floors if no provision for pipes or cables was made at the design stage or if an unforeseen requirement has arisen.
Once the required pipe or cable is secured into the chase it can be concealed by plaster, cement mortar or other surface finish. Some services such as power cables, must be housed in protective tubing to separate them from plaster or other enveloping materials.
 Related articles on Designing Buildings Wiki
Featured articles and news
Making the case for breathing new life into existing buildings.
Masonry technique from Scotland and Ireland was exported to North America.
Procurement model puts operations in the hands of the client.
Recommendations on face coverings in workplaces.
Putting the rubber IN the road.
Guidance available on latest update from MHCLG.
Style over substance. Book review.
Preventing water penetration using lime grout and injection mortars.
UK Finance names top 10 fraudster tricks to avoid.
Experience Exchange Report collates operating benchmarking data.