Sample shop drawing of a rafter assembly with parts list and released for fabrication stamp

Design workflow · Shop drawings

Shop drawings – every piece, exactly as it will be made

Assembly drawings, single-part drawings, CNC data and material lists generated from the 3D model and checked before release – the instructions our factory works to, and the reference our QA/QC inspects against.

Request a quotation Khám phá giải pháp

Step 4
Of our design workflow: Every piece
Detailed & marked: CNC
Cutting & drilling data: Checked
Before release

Sample assembly drawing of a tapered rafter with dimensions, welds and parts list

What shop drawings are

Shop drawings – also called fabrication drawings – describe how each piece of the structure is made. Assembly drawings show each shipping piece with its parts, dimensions, holes, welds, surface treatment and piece mark; part drawings show every plate and profile to be cut; and CNC files drive our cutting, drilling and marking machines.

They are produced from the 3D model after the approval drawings are approved, checked by a second detailer, and released for fabrication under revision control. The factory fabricates only to released shop drawings – and QA/QC inspects every piece against them.

Contents

What the shop drawing package contains

Generated from the 3D model for every project.

shipping pieces

Assembly drawings

Each column, rafter, beam or bracing assembly with parts, dimensions, holes, welds and piece mark.

plates · profiles

Part drawings

Every plate and profile with cut dimensions, holes, bevels and quantities.

machines

CNC / DSTV data

Cutting, drilling and marking files for our CNC lines, straight from the model.

BOM · MTO

Material lists

Bills of materials, cutting lists and weights by assembly and by lot.

connections

Bolt & weld information

Bolt sizes and grades, hole types, weld symbols and NDT marking.

model

3D model reference

The model the drawings come from – see 3D Tekla model.

Ứng dụng

Why shop drawing quality matters

Right first time

Holes, cuts and welds that fit at site – no rework, no field drilling.

Consistent with the model

Generated from one 3D model, so drawings, CNC and lists always agree.

Clear weld information

Weld types and sizes with standard symbols (AWS A2.4 / ISO 2553).

Traceable pieces

Piece marks link drawings, heat numbers, inspection and shipping lists.

Controlled revisions

Only the current revision reaches the shop floor.

Inspection reference

QA/QC inspects dimensions and welds against the released drawing.

Design workflow · step 4 of 6

Where this fits in our design workflow

Shop drawings are step 4 of our six-step design workflow. They come from the 3D Tekla model (step 3), which is built from the approved drawings (step 2) – so nothing reaches the shop floor that you have not approved.

Quy trình thiết kế World Steel

Điểm dừng sau bước 2: không chế tạo bất kỳ cấu kiện nào trước khi bản vẽ Approval được phê duyệt.

Checking & release

Checked, released, controlled

Every drawing is checked by a second detailer against the model and the approved design before release. Released drawings carry a revision and status; superseded drawings are withdrawn from the shop floor, and any change goes back through the model and the approval process.

Quy trình

The World Steel design workflow

1
1 · Proposal drawings (PPD)
Layout, sections and preliminary quantities issued with the quotation.
2
2 · Approval
Approval drawings, design report and column reactions – approved before fabrication.
3
3 · 3D Tekla model
Every member, plate, bolt and weld modelled and clash-checked.
4
4 · Shop drawings
Assembly and part drawings, CNC data and material lists.
5
5 · Erection drawings
Plans, sections, sequence and bolt lists for site.
6
6 · As-built drawings
Final record of the structure as built.

FAQ

Câu hỏi thường gặp

Do we need to approve shop drawings?

Normally you approve the approval drawings (step 2); shop drawings are our internal production documents. Where the contract requires it, we submit shop drawings for review as well.

Can we receive the shop drawings?

Yes – as PDF with the quality dossier or on request, according to the contract.

How do you prevent fabrication from an old revision?

Drawings are released under revision control, superseded copies are withdrawn, and CNC data is regenerated from the current model.

Fabrication-ready drawings

Send us your approved design – we model, detail and fabricate the steel from checked shop drawings.

Request a quotation +84 902 881 833

Shop drawings – every piece, exactly as it will be made

What shop drawings are