SStructural EngineeringServices

Piping Design & Stress

Piping Isometric Drawings

Structural Engineering Services specialises in generating dimensioned piping isometrics with weld, spool and material information.

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Quick answer

Piping Isometric Drawings is the process of generating dimensioned piping isometrics with weld, spool and material information. Structural Engineering Services delivers it worldwide on licensed CADWorx, CAESAR II, AutoCAD Plant 3D, Smart P&ID to ASME B31.1, ASME B31.3, ASME B31.8 and client specifications.

1,200+
Projects delivered
40+
Countries served
60+
In-house engineers
2009
Engineering since

Software we use

  • CADWorx
  • CAESAR II
  • AutoCAD Plant 3D
  • Smart P&ID

Why us

Why choose us for piping isometric drawings

Whether you are a fabricator racing a shop schedule, an EPC contractor managing multiple disciplines or an owner needing an independent check, our piping isometric drawings team works as an extension of yours. Every deliverable passes a two-stage check by senior engineers before it leaves our office.

Piping Isometric Drawings example

Deliverables

What you receive

The standard piping design & stress package. Anything outside it is priced as a named add-on, never assumed.

01

3D piping model

02

Piping GA & isometric drawings

03

Stress analysis report

04

Pipe support drawings

05

Line list, valve list & BOM

06

Spool fabrication drawings

Compliance

Codes & standards

Every piping isometric drawings package is engineered to the governing codes below and to any client or authority specification you issue with the enquiry.

  • ASME B31.1
  • ASME B31.3
  • ASME B31.8

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Who we work with

Four kinds of client buy piping isometric drawings from us

The scope looks similar on paper. What each buyer actually needs from it does not — so the engagement is shaped around it.

Steel & equipment fabricators

Shop loaded, schedule fixed, no spare detailing capacity in house.

What you get

Spool drawings with cut lengths, weld maps and bolt-up data that your pipe shop can fabricate from without a single field re-measure.

EPC & engineering contractors

Multi-discipline scope, moving client revisions, hard contractual dates.

What you get

A piping discipline that keeps pace with P&ID revisions and hands structural the support loads they need before steel is frozen.

Consultants & design offices

Work won beyond current capacity, delivered under your own stamp.

What you get

Modelling and stress capacity under your stamp — clean isometrics in your template and a stress report that survives client review.

Owners & operators

Plant modifications, life extension and independent verification.

What you get

Confidence that nozzle loads, flexibility and support design will not become a commissioning problem on your plant.

How we deliver

From your drawings to issued-for-construction, in five steps

The same engagement runs every piping isometric drawings project, whether it is a single package or a multi-year frame agreement — so you always know what happens next and who owns it.

  1. 01

    Share your inputs

    Day 0 · NDA on request

    Send what you already have — P&IDs, line list, piping specification, plot plan, equipment GAs and nozzle orientations, plus insulation and tracing requirements. Incomplete inputs are fine; we list the gaps rather than guess at them.

  2. 02

    Fixed quote in 24 hours

    Within 24 hours

    A senior engineer reviews the package and returns a priced proposal with scope, assumptions, exclusions and a milestone plan for your piping isometric drawings. No obligation, no placeholder pricing.

  3. 03

    Model & engineer on CADWorx

    Licensed CADWorx + CAESAR II

    A spec-driven 3D model is routed in CADWorx or Plant 3D against the P&IDs, then critical lines are exported to CAESAR II and checked for sustained, thermal, wind and occasional loads with nozzle reactions kept inside the equipment allowables.

  4. 04

    Two-stage senior check

    Checker → senior approval

    Nothing leaves our office on one pair of eyes. An independent checker verifies the technical content, then a senior engineer approves it against ASME B31.1 / ASME B31.3 and your project specification.

  5. 05

    Issue, revise, close out

    6 deliverable types

    Final issue covers the modelled plant, dimensioned isometrics with weld and spool data, support drawings with loads for the structural team, the stress report and a reconciled line list, valve list and BOM. Comments are closed within two revision cycles, and RFIs raised during fabrication or construction are answered inside 48 hours.

Scope matrix

Exactly what a piping isometric drawings package covers

No vague scopes and no surprise variations. This is what sits inside the base price, what you can bolt on, and what we need from you to start.

Swipe the table sideways to see every column

Piping Isometric Drawings: base scope, optional add-ons and required client inputs by work package
Work packageIncluded in base scopeOptional add-onWhat we need from you
3D model & routingSpec-driven 3D model, equipment placement, routing and interference checksPlot-plan optimisation study, operability and maintenance access reviewP&IDs, line list, piping spec, plot plan and equipment GA drawings
Stress analysisCAESAR II analysis of critical lines, sustained, thermal and occasional casesDynamic, surge, slug and seismic time-history analysis; FIV screeningLine conditions, design/operating temperatures and nozzle allowables
IsometricsDimensioned isometrics with weld, material and field-fit informationSpool-split fabrication isometrics with cut lengths and weld mapsIsometric template, numbering convention and fabrication shop limits
Support designSupport location, type selection, standard support drawings and load tableSpecial support, spring hanger and expansion-joint design and datasheetsStandard support library or approval to use ours; steel availability
Material controlLine list, valve list and complete piping BOM extracted from the modelMTO by phase, procurement packages and vendor-data reconciliationPiping specification, valve datasheets and approved vendor list
CoordinationInterference resolution with structural, equipment and electrical modelsFederated Navisworks review sessions and 3D model-review walkthroughsStructural and equipment models, cable-tray and HVAC routing intents

Missing an input? Send what you have — we list the gaps in the proposal instead of pricing around them.

Engagement & pricing

Four ways to buy the same engineering

Pick the commercial model that matches how your piping isometric drawings work arrives — one-off package, measurable units, or continuous capacity.

Fixed lump sum

one price, whole scope

Best for

Defined piping isometric drawings packages where the inputs are frozen and you need budget certainty before you commit.

Scope, assumptions and exclusions written into the proposal, so variations are visible rather than invoiced quietly.

Typical turnaroundQuoted in 24 hours, milestones agreed at kick-off

Per-isometric rate

Most used

per isometric / line

Best for

Process plants and revamps where the line list gives a countable, auditable scope.

Separate rate bands for small-bore, large-bore and alloy lines.

Typical turnaround30–60 isometrics per week per modelling team

Per-line stress rate

per analysed line

Best for

Stress-only scopes where another party owns the 3D model and you need critical lines qualified.

Includes support optimisation and nozzle-load qualification per line.

Typical turnaround15–25 critical lines analysed and reported per week

Dedicated engineer

per engineer month

Best for

Continuous workload, frame agreements and clients who want a named engineer who learns their standards and stays on the account.

Your engineer works on licensed CADWorx inside your workflow, reporting to your lead as an extension of your team.

Typical turnaroundEngineer allocated within 5 working days, with overlap hours in your timezone

Not sure which model suits your piping isometric drawings scope? Send the drawings — the proposal prices two options side by side.

Get a free quote

Quality assurance

Two senior checks before anything reaches you

Every piping isometric drawings deliverable is checked by an engineer who did not produce it, then approved by a senior engineer who signs it by name.

2
Senior check stages before any issue
3
Code frameworks routinely worked to
48h
Maximum RFI response during fabrication
100%
Licensed software — no cracked tools, ever
  1. Stage 1

    Independent discipline check

    Checked by an engineer who did not produce the work

    The checker rebuilds the critical numbers rather than reading along with them, marking up every sheet of the piping isometric drawings package against the inputs.

    • Routing and line numbers reconciled line by line against the P&IDs and line list
    • Wall thickness, material, rating and branch tables verified against the piping specification
    • Stress results checked for sustained, expansion and occasional allowables with support reactions
    • Isometric dimensions, weld types and material take-off cross-checked to the 3D model
  2. Stage 2

    Senior engineer approval

    Approved by name against ASME B31.1, ASME B31.3, ASME B31.8

    The approving engineer looks past compliance at whether the solution is buildable, economical and right for how the asset will actually be used.

    • Nozzle loads verified against vendor equipment allowables, not just code limits
    • Layout reviewed for operability, maintenance access, draining, venting and safe egress
    • Support loads issued to structural reconciled with the latest model revision
    • ASME B31 compliance and client specification deviations closed and signed off

    Only then is the package released — with the checker and approver recorded against the revision.

FAQ

Frequently asked questions

What is included in piping isometric drawings?

Our piping isometric drawings covers generating dimensioned piping isometrics with weld, spool and material information. Typical deliverables: 3D piping model, Piping GA & isometric drawings, Stress analysis report, Pipe support drawings.

Which software do you use for piping isometric drawings?

We work on licensed CADWorx, CAESAR II, AutoCAD Plant 3D, Smart P&ID and deliver native files plus PDF, DWG and IFC on request.

Which codes and standards do you follow?

We design to ASME B31.1, ASME B31.3, ASME B31.8 and to client specifications such as Shell DEPs and major operator standards.

How long does a typical piping isometric drawings project take?

Small packages are typically delivered in 3–7 working days; large projects are split into phased submissions agreed at kick-off.

How do you price piping isometric drawings?

We quote fixed lump-sum, per-tonne, per-drawing or hourly rates. Send your drawings for a free quote within 24 hours.

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Directory

Piping Isometric Drawings by location

We deliver piping isometric drawings to clients in every major market. Open a region to find your country or city — each page covers the local codes, units and delivery window we work to.

250 destinations

North America

49

Delivered to AISC 360, ASCE 7, AWS D1.1 with overnight turnaround — your evening RFI is answered by your next morning.

UK & Europe

54

Delivered to EN 1993 (Eurocode 3), EN 1090, EN 13445 with a 3–5 hour working-day overlap plus next-morning deliveries.

Middle East

30

Delivered to AISC 360, ASME B31.3, API 650 with almost full working-day overlap with 1–2.5 hours time difference.

Asia Pacific

42

Delivered to AS 4100, AS/NZS 1170, AISC 360 with strong morning overlap with same-day review cycles.

India

33

Delivered to IS 800, IS 875, IS 1893 with same time zone with on-call engineering support.

Africa

19

Delivered to SANS 10162, EN 1993, AISC 360 with a 2–4 hour time difference with full-day coordination.

Latin America

23

Delivered to AISC 360, ASCE 7, NSR-10 with overnight production so drawings are ready at start of day.

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