SERVICE SPECIFICATION // APPROVED 2026

What We Produce

Six kinds of production work, across three trades. In every one of them, the pattern is the same: we produce, your qualified person directs, reviews, corrects, and seals.

Deliverables

Six ways we put it on paper.

Built to your standards, checked before it reaches you, and ready for fabrication, the field, or submittal.

Blueprints and technical drawings of house plans spread out on a white surface, with plumbing fittings, an adjustable wrench, and braided hoses placed on top.
TYPE 01

Shop and Fabrication Drawings

Piece marks, cut lists, weld callouts, bolt schedules, and shop assembly details produced to your shop standards and delivered ready for your checkers.

Detailed Deliverables:

  • Fabrication and shop assembly sheets

  • Cut lists, bill of materials, and hardware summaries

  • Weld callouts and standard connection layouts

  • Direct integration with your shop naming and piece-mark conventions

Silhouette of a metal structure against a blue sky with the sun shining.
TYPE 02

Erection and Installation Drawings

Field placement drawings, grid line references, anchor bolt settings, embed layouts, and trade-specific installation documentation that your field crews can build from.

Detailed Deliverables:

  • Field erection plans and elevation views

  • Anchor bolt setting plans and embed details

  • Clear trade grid coordination callouts

  • Staging and sequencing markups per contractor direction

Blueprint drawings of a building or architectural design spread out on a white surface with a metallic compass, a ruler, and a pen.
TYPE 03

Model Production and BIM Support

3D modeling inside your project environment to your Level of Development (LOD) requirements, clash identification, and coordination preparation.

Detailed Deliverables:

  • Trade-specific model buildouts per issued project documents

  • Sleeve, penetration, hanger, and equipment modeling

  • Clash detection run-throughs and organized clash reports

  • Native template maintenance and standard export sets

Blueprints and technical drawings of mechanical and engineering components, with rolled and laid flat sheets showing detailed schematics.
TYPE 04

Design Production and Layout

Working plan sheets, head and pipe layouts, duct and equipment routing from your markups, standard details, legends, and title blocks.

Detailed Deliverables:

  • Background cleanup and architectural layer coordination

  • Working plan sheets and pipe routing from approved criteria

  • Legend sheets, schedule setup, and standard details

  • Submittal package generation for qualified person review

Industrial water system with pipes, valves, pumps, and monitoring controls, set up in an indoor utility room.
TYPE 05

Revisions, Backchecks and As-Builts

Turning around redlines, incorporation of AHJ and plan review comments, RFI responses, and final as-built drawing production.

Detailed Deliverables:

  • Rapid redline turnaround within your standard business hours

  • Directed responses to plan review and check comments

  • Field markup incorporation into clean as-built records

  • Maintained revision delta tags and historical drawing logs

A row of red fire sprinklers connected to red pipes in a building's fire suppression system.
TYPE 06

Takeoffs and Submittal Package Assembly

Model-derived quantities, material cut lists, cut-sheet compilation, and complete submittal binder assembly ready for review and transmission.

Detailed Deliverables:

  • Model-derived linear and piece-count takeoffs for contractor validation

  • Manufacturer cut-sheet aggregation and bookmarks

  • Submittal cover sheets and specification matrices

  • Pre-checked documentation ready for qualified person sign-off

GOVERNANCE & SCOPE BOUNDARIES

Trade Operating Boundaries

Every engagement has unambiguous jurisdictional guardrails. Select a trade vertical below to inspect the exact boundaries between what HX produces and what your licensed team retains.

Structural Steel Detailing

Remote detailing production for steel fabricators.

We work inside your standards and from your information. Engineering stays with the responsible design professional; your team keeps checking, project decisions, and release.

✓
What we do
Production drawings
Shop, fabrication, and erection drawings produced to your standards and returned for your checking.
The repetitive volume
Repetitive assemblies, misc steel, stairs and rails, platforms, and secondary framing.
Revision cycles
Redline turnaround and revision production — where most detailing departments actually drown.
Model production
Buildout in the platform your shop already runs, using your templates, naming, and piece-mark practice.
We ask instead of assume
Missing dimensions, conflicts, and unclear criteria come back to you as questions. We never guess to keep moving.
We check before we deliver
We run the agreed production checks before delivery. Your technical checking and release review stay final.
Scale by package
Capacity added for a package and stopped when it ends. No permanent seat to keep filled.
✕
What we do not do
No connection design
We do not set structural criteria, design connections, or perform delegated engineering.
No sealing or release
We do not sign, stamp, certify, issue for fabrication, or submit anything as the responsible party.
No shop or field decisions
Means, methods, sequencing, weld procedures, and procurement stay with you.
No field verification or certification
We do not measure, survey, or inspect. We can incorporate field information your team provides, but we do not verify or certify it.
No outside communication without your approval
We do not contact your customer, the GC, the EOR, the erector, or any other project party unless you authorize the specific role.
No permanent headcount
This is managed production capacity, not employee placement. No recruiting process, no permanent seat, no added payroll position.
Schedules depend on complete inputs
Late, incomplete, conflicting, or inaccurate information affects production and schedule. We identify it early so your team can resolve it.

See the operating model in action on a real job.

Send us one small package. No meetings, no sales deck. We will return it for your checking.