Knowledge Centre

Construction estimating guides.

Practical, plain-English guides written for UK builders, contractors, and tradespeople. Each guide explains a method, document type, or project-specific approach to construction estimating.

Estimating fundamentals

Core methods: unit rates, approximate quantities, assembly-based estimating, cost per square metre, and more.

Estimate documents

Guide to every document type: estimates, quotes, tenders, bills of quantities, schedules, and more.

Estimating process

End-to-end estimating workflow: from enquiry and drawing review to pricing, submission, and handover.

Project types

Estimating guidance for extensions, loft conversions, refurbishments, new builds, and trade-specific works.

Free tools

Use our free estimating tools to create draft documents directly in your browser — no account needed.

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