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Once the building’s design is refined, the Gray team develops construction documents that define the scope of work that is needed to execute the project. This is the final step before any dirt is moved. Detailed design services include:


  • Permitting
  • Architectural design
  • Interior design
  • Site/civil design
  • Structural design
  • Building mechanical and electrical design
  • Fire protection design


  • Process risk analysis
  • Process flow diagram/piping and instrumentation diagram/utility flow diagram development
  • Process layout
  • Equipment and instrument procurement
  • Piping design
  • Electrical and instrumentation design
  • Controls integration

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