Asia Pacific

Structural Engineering Services in Japan

Every engineering discipline your Japan project needs — designed to AS 4100, AS/NZS 1170, AISC 360 and delivered with strong morning overlap with same-day review cycles.

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Quick answer

Structural Engineering Services serves clients in Japan with 60+ engineering services, working to AS 4100, AS/NZS 1170, AISC 360, ASME B31.3, SS EN 1993. Key sectors: Mining, LNG, Marine & Offshore, Commercial.

Design basis

Codes, standards & units for Japan

Drawings that arrive in the wrong convention cost days on the shop floor. Here is exactly what we design and draft to for Japan.

Standard	Discipline	How we apply it
AS 4100	Structural steel	Limit-state steel member and connection design
AS/NZS 1170	Loads	Permanent, imposed, wind, snow and earthquake actions
AISC 360	Structural steel	Member, connection and stability design for frames, racks and platforms
ASME B31.3	Process piping	Wall thickness, flexibility and CAESAR II stress acceptance
SS EN 1993	Structural steel	Singapore National Annex adoption of Eurocode 3

Units on Japan jobs

metric

Metric throughout — millimetres on drawings, metres for levels and setting out, kilonewtons and megapascals in the calculations.

What lands in your folder

Native Tekla, STAAD.Pro, CAESAR II and PV-Elite files plus PDF, DWG, DXF, NC1/DSTV and IFC.

Drawing conventions your fabricator expects

Sheets & scales: ISO A1 / A3 sheets, 1:100 GAs and 1:10 details
Dimensions: Millimetres, with reduced levels (RL) in metres
Steel grades: AS/NZS 3678 and 3679 Gr.250 / 300 / 350, or ASTM equivalents
Bolting: AS/NZS 1252 8.8/S and 8.8/TF categories called up on every connection
Welding: AS/NZS 1554 weld symbols with SP / GP category stated
Projection: Third-angle projection with site grid and survey datum

How we work with you

A working day with your Japan team

Nothing about this is improvised. Japan is 3 h 30 m ahead of our engineering desk (UTC+05:30), so we run a fixed daily rhythm around your working hours in Japan.

Your day in JapanOur engineering deskExtended deskShared hours

09:00–17:30

13:00–21:30

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09:00Your morning05:30 here

13:00Your midday09:30 here

17:30Your hand-off14:00 here

Clock positions use standard time for Japan; daylight saving shifts the band by one hour for part of the year.

Live overlap

4 h 30 m

Shared hours 13:00–17:30, Japan time

RFI turnaround

Same working day

Raised and closed inside one working day

Review rhythm

Twice weekly

A 30-minute model walkthrough on screen, plus a written progress log

09:00
1. Overnight drop is waiting
Models, drawings and calculation updates produced while Japan was closed are already in the shared folder when your day starts.
13:00–17:30
2. Live window
Screen-share model walkthroughs, connection decisions and RFI closeout — with the engineer who did the work, not an account manager.
17:30
3. You hand off
Mark up the drawings, raise RFIs and set the next priority before you log off. The queue is picked up at the start of our next shift.
Next 09:00
4. Revisions back
Comments closed, revision clouds in place and the next issue in your folder before the first Japan meeting of the day.

Sector focus

Industries & project types in Japan

The work that reaches us from Japan clusters around four sectors. These are the packages we are asked for most.

Mining

Sector page

Heavy, abrasive-duty structures built far from anywhere — so the drawings have to be right first time.

Conveyor galleries and trestles
Transfer towers and chutes
Silos, bins and hoppers
Crusher and mill building steel

LNG

Sector page

Cryogenic service, heavy modularisation and the documentation trail an LNG EPC expects.

Cryogenic stress and support design
Modularised process racks
Tank appurtenances and access steel
Jetty and loading-arm structures

Marine & Offshore

Sector page

Floating and fixed marine assets where weight control and corrosion allowance are part of the design brief.

FPSO module steelwork
Jetty, dolphin and mooring structures
Marine-grade skid packages
Transport and lift analysis

Commercial

Sector page

Building steelwork where architectural coordination and erection sequence matter as much as the member sizes.

Office and retail steel frames
Atrium and façade support steel
Connection design and bolt lists
Federated BIM model reviews

Commercial & compliance

Contracting, IP and invoicing for Japan

Engineering is the easy part of an offshore engagement — the contract, the IP and the invoice are what stall it. Here is how we set those up for Japan clients.

Fixed-price package

Quote in 24 h · 2–4 milestones

Best for: A defined scope — one building, one skid, one vessel

Lump sum against an agreed drawing and tonnage list. Milestone invoicing, and change orders only for scope you approve in writing.

Rate-based delivery

Weekly reporting · monthly invoice

Best for: Scope that is still moving

Per-drawing, per-tonne or per-hour rates fixed up front, with a weekly burn and progress report so the invoice never surprises you.

Dedicated engineers (ODC)

Monthly per seat · 1-month notice

Best for: A continuous workload across many projects

Named engineers reserved for you each month, working in your folder structure, templates and drawing standards under your team lead.

The paperwork, up front

Working with SES from Japan

Invoicing currency: JPY or USD, fixed at contract stage
Payment terms: Milestone or monthly invoicing, net 30 days from invoice
Contract vehicle: NDA, then a master services agreement with a priced scope schedule per package
IP & ownership: Models, drawings, calculations and native files transfer to you on final payment
Cross-border paperwork: Tax-residency and invoice documentation supplied for Japan finance and treaty relief
Insurance: Professional indemnity cover; certificate issued with the proposal on request

Local practice: Documentation is built for AS/NZS fabrication practice and for principal-contractor ITP, hold-point and witness-point regimes.

Confidentiality, IP & data security

Mutual NDA signed before drawings are exchanged — usually inside one working day.
All models, drawings, calculations and native files become your property on final payment.
Project data lives in access-controlled folders; only the named team on your job can open them.
No sub-contracting of your scope to a third party without your written consent.
Every deliverable is produced on genuine licensed software, so your submission chain stays clean.
Transfers over your portal, SharePoint, or our encrypted link — whichever your IT policy allows.

Coverage

Delivered everywhere in Japan

We work remotely, so there is no travel premium and no gap in coverage between Japan's industrial centres.

Work is delivered remotely from our engineering office: strong morning overlap with same-day review cycles.
No travel premium, no minimum project size, and the same senior review on every package.

Start a Japan package All locations

Cities we serve across Japan

Each has its own page with the same code basis and delivery rhythm.

Tokyo Yokohama

Neighbouring Asia Pacific markets

Same team, same codes — useful when a project crosses a border.

Australia New Zealand Singapore Malaysia Indonesia Thailand Vietnam Philippines South Korea Taiwan Hong Kong Sri Lanka

Every service we deliver in Japan

Open a discipline to see the exact scope you need. Each page sets out deliverables, the codes we work to in Japan and a typical turnaround.

62 services

Steel Structures & Detailing in Japan

Structural Analysis & Design in Japan

Code-compliant analysis, member design, connection and foundation design.

Piping Design & Stress in Japan

3D piping, layouts, isometrics and CAESAR II stress analysis for process plants.

Static Equipment Design in Japan

Mechanical design of pressure vessels, heat exchangers, tanks and stacks.

Skid Package Engineering in Japan

Complete design of modular skids — vessel, piping, structure and lifting.

Finite Element Analysis in Japan

Advanced simulation on ANSYS Mechanical Enterprise for critical components.

CAD, BIM & Drafting in Japan

Detail engineering, BIM modeling and model reviews across all disciplines.

Start your project

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Free, no-obligation proposal from a senior engineer.

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