Detailed Engineering is the phase where an approved FEED package is transformed into complete construction-ready engineering documents. It includes detailed drawings, equipment specifications, piping layouts, electrical and instrumentation designs, material take-offs, and procurement support. A high-quality detailed engineering package reduces construction errors, minimises change orders, and helps deliver projects safely, on time, and within budget.

A typical Detailed Engineering package may include:

• Piping & Instrumentation Diagrams (P&IDs)
• General Arrangement (GA) Drawings
• Equipment Layouts
• Isometric Drawings
• Piping Stress Analysis
• Civil & Structural Drawings
• Electrical Single Line Diagrams
• Instrument Hook-up Drawings
• Cable Schedules
• Instrument Index
• Material Take-Offs (MTO)
• Equipment Specifications
• Procurement Support Documentation

These deliverables provide the information required for procurement, construction, and commissioning.

FEED (Front-End Engineering Design) defines the project’s scope, technical approach, preliminary design, cost estimate, and execution strategy.

Detailed Engineering develops the approved FEED into complete construction-ready documentation that contractors and procurement teams use during execution.

In simple terms:

• FEED decides what will be built.
• Detailed Engineering defines exactly how it will be built.

Comprehensive Detailed Engineering helps organisations:

• Reduce engineering errors
• Minimise construction rework
• Improve procurement accuracy
• Detect design clashes before construction
• Improve coordination between engineering disciplines
• Reduce project delays and cost overruns
• Support safe and efficient project execution

Investing in quality engineering early significantly reduces execution risk later in the project lifecycle.

Outsourcing Detailed Engineering enables organisations to access experienced multidisciplinary engineering teams without increasing permanent staffing.

Benefits include:

• Faster engineering execution
• Flexible engineering resources
• Cost-effective project delivery
• Access to specialised engineering expertise
• Improved engineering quality
• Better support for procurement and construction teams

A well-managed engineering partner also helps maintain schedule commitments during peak project workloads.

Detailed Engineering provides procurement and construction teams with accurate technical documentation needed to purchase equipment, fabricate systems, and execute construction activities.

This includes:

• Equipment specifications
• Material quantities
• Vendor data review
• Construction drawings
• Installation details
• Technical clarifications

Accurate engineering documentation reduces procurement delays and improves construction productivity.