What is the BC3 format and why does it matter in construction?

Construction data, not a PDF

A BC3 estimate retains reusable structure: chapters, subchapters, items, units, quantities, text, prices and, when present, resource breakdowns and measurement lines. Applications can validate, recalculate and connect this data to business processes.

What must survive an import

A correct total is not enough. Reliable imports preserve hierarchy and economic meaning.

• Codes, descriptions and units without truncation
• Original chapters, subchapters and order
• Quantities, measurement lines and prices
• Material, labour and plant breakdowns
• Progress data when present

Compatibility works both ways

The official definition requires implementations to cover both input and output. Test the full round trip: import, work, export and reopen in another tool.