NBS Chorus
Intelligent construction specification, in the cloud. Work together on specs in real-time, across organisations and locations
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A range of subscription options to make NBS Chorus work for you
Scope and Contents
NBS Chorus covers multi-discipline content, see all the content libraries available.
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NBS Source
The construction product information you need, when you need it
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Uniclass
A dynamic and unified classification system for the construction industry covering all sectors
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Specifying with Uniclass
Get started with using Uniclass in digital specification
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Other services
See our full range of tools and services for specification and collaboration
Construction Information Service (CIS)
A comprehensive online collection of construction related standards, regulations, technical advice and articles
NBS Schumann
The new specification writing and consultancy service from NBS
BIM New
Use NBS to develop information-rich 3D models that are fully coordinated with linked specification information
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Reports
The latest findings from NBS tracking key insights into the Construction Industry
Digital Construction Report 2025
From AI to BIM: the data behind construction’s digital shift. Download now to discover where the industry is moving and how you can stay ahead.
Building Safety Act White Paper
Driven by a comprehensive survey of hundreds of construction professionals, highlights a concerning lack of consensus and clarity among industry leaders.
Resources
Helpful tools, and downloads to help you make the most of NBS
Sample Specifications
Download sample specifications and see what's possible with NBS Chorus
Embodied Carbon Guide New
Learn how to align your carbon assessments with BIM workflows. A practical, standardised approach to calculating the embodied carbon of building materials and products, and how to apply this data to BIM objects.
Best Practice Guide to Specification Writing
A well-written and robust specification is vital to the success of construction projects.
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We’re connecting construction information, working towards a better and more sustainable industry
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Learn how to align your carbon assessments with BIM workflows. This guide to Embodied Carbon Calculations, developed by NBS and Circular Ecology, sets out a practical, standardised approach to calculating the embodied carbon of building materials and products, and how to apply this data to BIM objects.
The NBS Guide to Embodied Carbon Calculations is a free resource which aims to enable designers and manufacturers to make consistent, transparent carbon decisions from early design onwards.
The guide establishes a clear, repeatable method for carbon calculations and explains how to apply this to a range of BIM object types, from simple materials to assemblies (such as wall build-ups) and complex multi-material systems.
It will also help you understand the importance of clear assumptions, declared units and recognised data sources to creating credible carbon reports.
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Architects and designers |
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Engineers |
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Sustainability consultants |
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BIM Professionals |
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