# CLASSIFIRE > CLASSIFIRE is a passive fire protection platform for estimators, contractors and consultants: estimating, drawing takeoffs, calculators and a technical library of tested systems, with an AI plugin for ChatGPT. CLASSIFIRE runs in the browser and is priced per user. It is an estimating and technical preparation tool, not a certification or compliance platform: all results require independent technical review. ## Solutions - [Estimate Builder](https://classifire.com.au/solutions/estimate-builder): Build priced passive fire estimates from your own pricing library, labour rates and crews. - [Takeoffs](https://classifire.com.au/solutions/takeoffs): Measure steel, ductwork, walls and floors on PDF drawings, and mark up service penetrations. - [Calculators](https://classifire.com.au/solutions/calculators): Steel spray, board and intumescent, ductwork and firestopping calculators backed by assessment data. - [Libraries](https://classifire.com.au/solutions/libraries): A technical library of tested firestopping systems and a firestopping library you can extend. - [Projects & reports](https://classifire.com.au/solutions/projects): Keep each project together and produce branded schedules, product summaries and certificates. - [Settings](https://classifire.com.au/solutions/settings): Set your company details, report covers, signatures and defaults once, and reuse them everywhere. - [Steel & duct protection](https://classifire.com.au/steel-and-duct): Spray, board and intumescent thickness for structural steel, and spray or wrap protection for ductwork, from published assessment data. - [AI Plugin for ChatGPT](https://classifire.com.au/chatgpt-plugin): Search candidate passive fire systems from photos or descriptions with the CLASSIFIRE ChatGPT plugin. ## Help - [Help centre](https://classifire.com.au/help): Step-by-step guides for drawing takeoffs. - [How to perform a steel takeoff](https://classifire.com.au/help/drawing-takeoffs/how-to-perform-a-steel-takeoff): Measure structural steel on a PDF drawing and transfer it into a steel calculator. - [How to perform a duct takeoff](https://classifire.com.au/help/drawing-takeoffs/how-to-perform-a-duct-takeoff): Measure ductwork on a PDF drawing and transfer it into the ductwork calculator. - [Common questions](https://classifire.com.au/support#questions): Answers about Excel, assessment tables, scanned drawings, pricing snapshots and certificates. ## Company - [Pricing](https://classifire.com.au/pricing): Plans Basic (free), Pro (price coming soon), Business (price coming soon), Business Plus (price coming soon). Priced per user, billed monthly or annually. - [Support & contact](https://classifire.com.au/support): Contact the team, request a demo or ask about plans. Email sales@classifire.com.au. ## Optional - [Full text](https://classifire.com.au/llms-full.txt): Every solution page, help article and answer in one plain-text file.