Code Of Estimating Practice
The Chartered Institute of Building Code of Estimating Practice is one of the most recognised industry guides for construction cost estimating and pricing. It provides a structured approach to preparing estimates, managing risk, and ensuring consistency across tender submissions.
Widely used by contractors, estimators, and commercial teams, the guide outlines the principles, methodologies, and professional standards required to produce accurate and reliable cost estimates. It covers everything from early stage budget estimates through to detailed tender pricing, including considerations for risk, overheads, and market conditions.
In an industry where margins are tight and accuracy is critical, the CIOB Code of Estimating Practice supports better decision making, improved transparency, and stronger commercial outcomes. It also plays a key role in aligning estimating processes with modern digital workflows and evolving requirements around cost certainty and project performance.
As construction continues to move towards data driven and integrated approaches, this guide remains a cornerstone for best practice in pre construction estimating.
Key Highlights
Industry recognised framework for construction cost estimating
Covers estimating from early feasibility through to tender submission
Guidance on risk allowances, overheads, and profit strategies
Promotes consistency and transparency across estimating teams
Supports improved accuracy and commercial decision making
Applicable across multiple sectors including building and infrastructure
The CIOB Code of Estimating Practice aligns closely with Sterling’s approach to modern, resource based cost and carbon estimating.
Sterling enables estimators to apply structured methodologies in line with CIOB guidance, while enhancing accuracy through digital workflows and real time data. Key areas of alignment include:
Resource based estimating with labour, plant and materials mapped directly to cost items
Improved accuracy and auditability through structured data and version control
Risk and contingency modelling supported through flexible cost planning tools
Integration of cost and carbon to support dual currency estimating, extending traditional estimating practices
Lifecycle thinking, allowing estimates to evolve beyond tender stage into forecasting and asset lifecycle management
By combining CIOB best practice with Sterling’s SaaS platform, organisations can move from static spreadsheets to a fully connected, data driven estimating environment.
Access the full guide via the Chartered Institute of Building website: https://www.ciob.org/industry/research/code-of-estimating-practice
