Complete Guide
Project Phase Framework: FEL 0 Through FEL 4
Your Guide to the Decisions That Take a Project From Concept to Construction
This guide gives you a working map of front-end loading (FEL), the process many teams know as front-end engineering design (FEED), covering FEL 0 through FEL 4. It shows what each phase is for, what it should produce, and what gets decided at every gate, so you always know where your project stands and what the next increment of spend should buy.
Inside, you’ll find:
- What each phase should produce, from the first block flow diagram to the final construction package
- A checkable deliverables list for every phase, with interactive boxes you can mark off right in the PDF
- How estimate accuracy narrows phase by phase, from +200%/−50% at FEL 0 to +10%/−5% at FEL 4
- Typical engineering investment by phase as a percentage of total installed cost (TIC)
- The gate questions to answer before you authorize the next phase, and why the FEL 2 gate is the most critical one on the project
Start Your Next Project on the Right Foundation
This guide draws on 30+ years of process engineering experience across 4,000+ installations in chemical and industrial manufacturing.
If you plan, authorize, or execute capital projects, this framework will help you answer the right questions before commitments become expensive to reverse. Download it and use it as a starting point to align your team on what makes sense for your project.