- Project plans
- Project activities
- Legislation and standards
- Industry context
Last edited 12 Dec 2017
Crosswall construction is a form of construction in which load bearing walls provide the primary vertical support and lateral stability for precast floors. External wall panels, lift cores or staircases are used to provide the required longitudinal stability. Bridging components such as floors, roofs and beams are supported by the load bearing walls or façade wall.
The system is ideal for buildings with cellular and orthogonal grids, with rooms of up to 4 x 9 m. It is suitable for buildings up to a height of five storeys where the floors are similar and where internal separating or party walls are required, such as in blocks of flats and student accommodation.
It creates a structurally efficient building with high levels of acoustic and fire separation between adjacent rooms. This is due to the high mass of the structure and good airtightness. Cross wall construction also has good thermal mass.
Crosswall systems can offer significant time and cost savings in comparison to traditional building techniques as the components can often be prefabricated. In addition, the arrangement of windows between crosswalls is unrestricted.
The precast elements are typically brought to site 'just in time'. Hidden joints and ties, both horizontally and vertically are grouted in place as the work develops. Other works such as installation of mechanical and electrical services and finishes that are required can start prior to the completion of the entire structure.
Crosswall construction involves a number of key connections:
- Wall-to-wall at vertical joints.
- Wall-to-wall at horizontal joints.
 Related articles on Designing Buildings Wiki
- Cavity wall.
- Concrete frame.
- Diaphragm wall.
- Modular buildings.
- Offsite manufacturing.
- Off-site prefabrication of buildings: A guide to connection choices.
- Party wall.
- Prefabricated structural panels.
- Preventing wall collapse.
- Wall types.
 External resources
- ‘Building Construction Handbook’ (6th ed.), CHUDLEY, R., GREENO, R., Butterworth-Heinemann (2006)
Featured articles and news
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.
People or density - can we create urban liveability at ever-increasing densities?