Most fabricators do not outsource detailing because they want to. They do it because the backlog is growing faster than they can hire, and every week a job waits for drawings is a week the shop floor is not earning. Done well, outsourcing adds capacity without adding overhead. Done badly, it adds RFIs, rework and late steel. This guide covers how to tell the difference before you commit.
Why fabricators outsource detailing
The reasons are consistent across markets:
- Peaks in the backlog. Detailing demand swings with awards. A partner absorbs the peaks so your in-house team is not overloaded one quarter and idle the next.
- Hiring is slow. Experienced Tekla Structures and SDS2 detailers are hard to find and take months to train on your shop standards.
- Turnaround. A partner working across time zones can return revisions overnight, which shortens approval cycles.
- Cost per ton. A well-run offshore team can deliver the same quality at a lower cost, provided checking and communication are built in.
What a good detailing partner delivers
Agree the full deliverable list before the first job. For structural steel, that usually means:
| Deliverable | What to check |
|---|---|
| 3D model (Tekla Structures or SDS2) | Built in your version, with your profiles, bolt catalogues and numbering rules |
| Erection drawings (E-sheets) | Piece marks, elevations, bolt and weld notes, field work clearly called out |
| Shop and assembly drawings | Your title block, dimensioning style and weld symbols |
| Single-part drawings | Plates and fittings ready for the cutting shop |
| CNC / DSTV and KSS files | Tested on your machines before production work |
| Advance bills of material | Format matches how your purchasing team orders steel |
| RFI log and revision tracking | Every question and change is logged, dated and traceable |
How to evaluate a detailing partner
1. Ask for a pilot job
Nothing replaces a live package. Choose a real job of moderate complexity, share your standards, and judge the result on accuracy, drawing quality, RFI quality and how revisions are handled.
2. Look at the checking process
Ask who checks the model and drawings, and whether the checker is independent of the modeller. A separate checker on every issue is the single biggest predictor of fewer errors on the shop floor.
3. Confirm they will adopt your standards
Your title block, numbering, dimensioning and connection preferences should be set up once and reused. A partner who asks for your standards early is a partner who has done this before.
4. Test communication
You need a named lead who answers in your working hours, a clear RFI process and a weekly status report. Overnight progress is only useful if someone is there to answer questions when you start your day.
5. Check security and contracts
Every engagement should run under an NDA, with clear ownership of models and drawings. Ask whether they can work inside your servers or cloud environment if you prefer to keep files under your control.
Pricing models compared
| Model | Works best when | Watch out for |
|---|---|---|
| Per ton | Scope and tonnage are well defined | Disputes over complexity, misc metals and revisions |
| Per sheet | Drawing counts are predictable | Incentive to split drawings; revisions billed separately |
| Dedicated team (monthly) | You have a steady pipeline of work | Needs enough volume to keep the team busy |
Many fabricators start per project, then move to a dedicated team once the partner knows their standards. A dedicated team usually gives the most consistent quality, because the same people work on every job.
Using time zones to your advantage
With an account team on your working hours and delivery teams on the other side of the world, comments sent at the end of your day can come back as revised drawings the next morning. That only works if the hand-off is disciplined: clear markups, a single RFI log, and a lead who confirms what will be ready by when.
The goal is not cheaper drawings. It is fewer surprises on the shop floor and faster approvals.
Red flags
- No independent checking, or checking “as needed”.
- Reluctance to do a pilot job on your standards.
- No named contact in your time zone.
- Vague answers on revisions and how they are billed.
- No NDA or unclear ownership of models and files.
Checklist before you sign
- Pilot job completed and reviewed by your shop and project managers.
- Standards package shared and confirmed (title block, numbering, connections, CNC settings).
- Deliverables list and software versions agreed in writing.
- Checking process, RFI process and weekly reporting confirmed.
- Pricing model, revision terms and payment schedule agreed.
- NDA signed and file ownership defined.
Proworks provides structural steel, concrete and precast detailing with dedicated teams, independent checking and account teams on US and Canadian hours. If you are weighing up a partner, send us a pilot package.