Engineering Outsourcing & Subcontract Support
Engineering Drafting, Modelling & Detailing Outsourcing
Additional technical capacity for a defined drawing, model or detailing package, without expanding your permanent team. Assignments are accepted subject to the expertise available, your project requirements and agreed responsibilities; you keep design authority.
What We Can Take Off Your Team
Defined technical packages from any of the six service areas: a clearly specified deliverable package, a backlog of drawing revisions or a negotiated recurring arrangement. You subcontract the drawing or modelling work, not the engineering design.
- 01CAD DraftingStructural arrangements, foundation plans and drawing updates.Civil & Structural Engineering Drafting
- 023D Structural Model ProductionTekla steel models, supported plant structure updates and model coordination.3D Structural Modelling & Plant Model Support
- 03Steel DetailingAssembly, part, shop and erection documentation and agreed fabrication reports.Structural Steel Detailing & Fabrication Documentation
- 04Concrete and Rebar DetailingConcrete details, reinforcement sheets and bar bending schedules.Reinforced Concrete & Rebar Detailing
- 05Brownfield RevisionsModifications to existing drawings, replacement steel and record updates.Brownfield Structural Modifications & As-Built Documentation
- 06MTO and DocumentationMaterial schedules, drawing registers and review-comment processing.Material Take-Offs, BOM & Engineering Documentation
Outsourced Production Scope
What an extended-team or subcontract arrangement can cover, and how it can be structured.
Related requirements, such as specialist modelling, scanning-related drawing updates, BIM coordination or civil infrastructure and site-service drawings, are assessed individually and accepted only where the required expertise, software, inputs and resources are available.
Production Work
- Outsourced Civil and Structural CAD Drafting
- Outsourced Structural Steel Detailing
- Outsourced Tekla Modelling and Drawing Production
- Fabrication and Erection Drawing Packages
- Concrete Structural Drafting and Reinforcement Detailing
- Material Take-Offs, BOMs and Quantity Schedules
- Brownfield Drawing and Model Revision Support
- Legacy Model and Drawing Production Support
Ways of Working
- Drawing Backlog Reduction
- Additional Production Capacity During Project Peaks
- Dedicated CAD and Tekla Resources, Subject to Availability
- Project-Based or Deliverable-Based Subcontracting
- Long-Term Outsourced Production Support
- Remote Drafting and Detailing Support for Consultancies, EPC Contractors and Steel Fabricators
- White-Label Production Support, Where Contractually Agreed
- Hourly, Daily, Monthly, Milestone-Based or Project-Based Arrangements, Subject to Agreement
- Defined Scopes of Work, Deliverables, Review Cycles and Revision Responsibilities
Who This Is For
EPC contractors
Extra structural production capacity during detailed engineering peaks.
Engineering consultancies
Drawing, modelling and documentation support for your designers.
Steel fabricators
Shop and erection drawings and lists from approved design packages.
Industrial contractors
Modification drawings and as-builts for work on existing plant.
Agreed Before Work Starts
Every package starts from a written scope, so responsibilities are clear before the first drawing is produced.
Client Inputs
The approved drawings, models, specifications and revisions the package is produced from.
Design Ownership
Design decisions and approvals stay with your responsible engineer; we produce the documentation.
Review Responsibilities
Our production checks, your review cycle, and how comments are returned.
Software and Formats
Platform, version, native formats and exchange files, confirmed before work starts.
Codes and Standards
The standards, editions and client specifications recorded in the scope of work.
Changes
How change instructions are issued, assessed and incorporated.
Engagement options
How Packages Can Be Structured
Fixed-Scope Work Package
Defined models, drawings, quantities and review deliverables.
Defined up front: Inputs, inclusions and exclusions, revision allowances, milestones and acceptance criteria.
Drawing or Revision Backlog
Batch drafting, redline implementation and drawing conversion.
Defined up front: Number of sheets, complexity, source condition, revision tags and expected throughput.
Milestone-Based Support
A multi-stage detailing or model package.
Defined up front: Milestone submissions, review hold points, the technical query process and authorised scope changes.
Resource-Based Support, Where Resourced
Recurring drafting or modelling support.
Defined up front: Competence, software and licence arrangements, availability, hours, confidentiality and supervision.
Not every arrangement suits every request. The engagement model, schedule and price are agreed for each package in the written proposal; capacity is confirmed per request and no fixed turnaround is assumed.
Confidentiality and File Exchange
- An initial enquiry needs no confidential drawings; a scope summary is enough to start.
- Drawings, models and data are shared for technical review and quotation only through channels and permissions agreed with you.
- Confidentiality agreements and controlled file transfer can be discussed before sensitive work packages are received.
- Client drawings, models and project details are not published without authorisation.
From Your RFQ to an Agreed Work Package
How an outsourced package proceeds, from the first scope summary to close-out.
- 01
Share the Scope
Project, deliverables, input maturity, software and target dates.
- 02
Technical Clarification
Drawing and model types, formats, specifications, interfaces and the design engineer.
- 03
Statement of Work
Inclusions, exclusions, review cycles, checking, pricing basis and change handling.
- 04
Package Production
Produced to agreed conventions; queries raised for unresolved design data.
- 05
Review and Submission
Production checks, revisions issued and authorised comments incorporated.
- 06
Close-Out
Final register, revisioned files, quantity reports and models where included.
Common Questions
What buyers usually ask before subcontracting a drawing, model or detailing package.
Do we have to outsource a whole project?
No. Depending on your requirements and resource availability, the scope may be a defined group of drawings, a model or a complete detailing package.
Can your team follow our title blocks and numbering?
Client templates and procedures are assessed during scope definition and incorporated when compatible and agreed.
Who approves engineering design?
The responsible engineer or design authority defined by the project contract. Drafting and detailing alone do not provide engineering sign-off.
What if design information changes?
Changes are evaluated against the agreed scope and revision allowances before they are incorporated and resubmitted.
Before You Commission
Review the professional experience behind the team, how project standards are applied, and how packages are checked and handed over.
Have a drawing, model or detailing packageto outsource?
Send the scope of work, the design inputs you have and your target schedule. Engineering Outsourcing is preselected on the enquiry form; tick the service lines involved.
