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Steel gantry structures in an electrical substation

Overflow capacity for UK steelwork

Steel Detailing Services for UK Fabricators

Tekla models, fabrication drawings and rebar schedules for UK industrial, energy and infrastructure steelwork, prepared to your execution specification, with your morning overlapping our afternoon.

Detailing Capacity for UK Steelwork Contractors

PetroHill gives UK steelwork contractors, detailing practices and engineering contractors extra Tekla detailing capacity for peaks, tight programmes and packages that would otherwise wait for in-house resource. We work from Lahore, four to five hours ahead of the UK: your morning overlaps our afternoon, and comments you send in your afternoon are picked up at the start of our next day.

UK steelwork is built to an execution specification. The designer states the execution class under BS EN 1090-2, often with the National Structural Steelwork Specification adopted alongside it, and the steelwork contractor carries the UKCA or CE marking. Our part is to make the drawings carry everything the shop and site need for that class: weld and bolt information, preparation details, tolerances flagged where specified and traceable revision control.

Our senior team brings more than thirty years of heavy industrial and energy steel experience, gained mainly on oil and gas projects in the Middle East and Central Asia rather than UK jobs. For UK work we therefore start with a scope review that confirms your drawing standards, connection conventions, marking system and shop preferences, and we run a pilot package when you want to see our drawings before committing more.

Industrial and energy work suits our background best: substations and power plant steel, process and water-treatment structures, pipe racks, platforms and access steel, and modification steel for operating sites. Building frames are taken on where the scope and connection design responsibility are clearly defined.

Scope & Deliverables

Typical UK packages

  • Power, Substation and Energy-from-Waste Structural Steel
  • Process, Water and Industrial Plant Structures
  • Pipe Racks, Platforms, Stairs, Ladders and Handrails
  • Equipment Supports and Secondary Steel
  • Modification Steel for Operating Sites from Verified Survey Data
  • Rebar Placing Drawings and BS 8666 Bar Schedules

Deliverables

  • Tekla Structures Detailing Model
  • GA, Erection, Assembly and Single-Part Drawings
  • Holding-Down Bolt and Embed Plans
  • Bar Schedules to BS 8666 Shape Codes
  • Member, Bolt and Material Lists
  • NC / DSTV Files and IFC Exports Where Contracted

Standards & Specifications

The execution class and execution specification come from the designer; we detail to them and do not select the class or certify conformity. UKCA or CE marking under BS EN 1090-1 is the steelwork contractor's. Working to a standard is not a claim of certification.

The scope of work records the applicable standards and editions for each package. A reference to a standard does not imply design verification or certification.

How standards are applied
  • CEN

    Eurocodes

    Eurocodes with the Applicable National Annex

  • CEN / BSI

    EN 1090-2 (BS EN 1090-2 in the UK)

    Execution of Steel Structures: Technical Requirements

  • BCSA

    NSSS

    National Structural Steelwork Specification for Building Construction

  • BSI

    BS 8666

    Scheduling, Dimensioning, Cutting and Bending of Steel Reinforcement

  • Client / EPC / asset owner

    Project specifications

    Client, EPC and Owner Standards and Project Specifications

  • ISO

    ISO 19650 series

    Information Management Using Building Information Modelling

From Lahore, on your schedule

Working Your Hours

The UK is four to five hours behind Lahore. Your morning overlaps our afternoon for calls and queries, and comments sent in your afternoon are picked up at the start of our next day.

  • UTC+5LahoreOur office (no daylight saving)
  • UTC+0 / +1United Kingdom4–5 hours behind Lahore

How a Package Runs

Inputs, model, checks, drawings and revisions, with information gaps raised before work proceeds.

  1. 01

    Inputs

    Design drawings, execution specification and class, connection responsibility and your drawing standard confirmed.

  2. 02

    Model

    Tekla model built to your numbering, phasing and assembly conventions.

  3. 03

    Checks

    Model and drawings checked against the design, the execution specification and the query log.

  4. 04

    Drawings

    GA, erection, assembly and part drawings with reports, issued per your transmittal.

  5. 05

    Revisions

    Comments and design changes clouded, re-issued and tracked in the revision register.

Can you detail to BS EN 1090-2 execution classes?

Yes. The designer states the execution class and specification, typically EXC2 for most building and industrial steel, and we make sure the drawings carry the weld, bolting, preparation and tolerance information that class requires. Selecting the class and certifying conformity are not part of detailing.

Have you worked on UK projects?

Our senior team's experience comes mainly from oil and gas projects in the Middle East and Central Asia, not the UK. That is why every UK package starts with a scope review of your standards and conventions, and why we offer a fixed-price pilot so you can check our drawings on your own job first.

Do you produce bar schedules to BS 8666?

Yes, where the reinforcement design is complete. We prepare placing drawings and bar schedules using BS 8666 shape codes, and raise queries on laps, cover and congestion for the designer to resolve.

How quickly will we receive a quote?

We reply to quote requests within 24 hours (GCC working day). Send drawings or a scope summary with the deliverables, standards and target dates you have; where inputs are incomplete we list the assumptions we priced and the questions to close.

Can we start with a small trial package?

Yes. Our pilot is one assembly or a 5–10 t package, at a fixed price, delivered in 5 working days from receipt of complete inputs. It lets you check our model, drawing standard and checking on your own project before committing a larger package. NDA on request.

Send Your Drawings

We reply within 24 hours (GCC working day). A scope summary is enough to start; NDA on request.

Technical services involvedOptional, tick any that apply

Describe the structures, the design inputs you have, the deliverables you need and your target schedule.

Technical details (optional)

For example Tekla Structures 2024, AutoCAD, native or IFC exchange.

For example 40 shop drawings or BBS for 12 foundations, plus the codes and standards that apply.

One file up to 8 MB (.pdf, .dwg, .dxf, .zip, .png, .jpg, .jpeg). Please do not attach confidential drawings here; project files are exchanged after first contact, under an NDA if required.

Only name, organisation, work email, service and scope summary are required. Your details are used to respond to this enquiry and prepare any quotation; see our Privacy Policy. Please do not send confidential drawings until an NDA or approved file exchange is agreed.

For Clients Only

Our project drawings are confidential. Full views, downloads and copies are available to clients only. Contact us to discuss samples relevant to your scope.

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