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How we design your quotation

Quotation design · Before contract

How we design your quotation

A good price starts with good engineering. Send us your drawings, or just the size, location and use of your building: our engineers design, weigh and price it member by member, then deliver one clear offer CIF to a Thai port or DDP to your site.

Quote to my drawings Ask for a VE proposal
2quotation routes: your drawings or our VE design
48 hconcept quotation for a standard PEB
CIF · DDPpriced to a Thai port or to your site
Since 2018quoting and delivering in Thailand

Choose your route

Two ways to get a World Steel quotation

Both routes are prepared by the same engineering team and end in the same complete quotation package. You can also ask for both and compare.

Route A

Quotation to your drawings

For owners, consultants and contractors who already have a structural design.

We take off every member, plate and bolt from your drawings and price the structure exactly as designed. Anything unclear or inconsistent is listed as a clarification, never guessed.

  • Member-by-member take-off from PDF, DWG, DXF or IFC
  • Price to your design code, steel grade and paint specification
  • Clarification list for missing or conflicting details
  • Optional: alternative saving ideas, priced separately

Route B · Recommended

VE proposal by World Steel

For projects with a layout, a sketch or only the key dimensions.

Value engineering (VE): our engineers make a preliminary design of the full building for Thai wind and seismic loads, optimise frames, bay spacing and purlins, and price the lightest structure that meets your requirements.

  • Preliminary 3D design to DPT 1311 wind and 1301/1302 seismic, or your code
  • Tapered frames, bay spacing and purlin layout optimised for steel weight
  • Steel weight and kg/m² stated, so you can compare offers fairly
  • Preliminary GA plan and frame elevation with the quotation

At a glance

Route A · Your drawingsRoute B · VE proposal
What you sendStructural drawings + specificationSize, location, use and loads – a sketch is enough
Who designsYour engineerWorld Steel engineers (preliminary design)
Steel weightAs drawnOptimised for your loads and spans
Typical response48 h – 5 working days, depending on drawing volume48 h for a standard PEB
You receivePriced BOQ, clarifications, CIF/DDP offerPriced design, GA drawings, steel weight, CIF/DDP offer

Step by step

Our quotation design process

Seven steps from your first message to a quotation you can approve with confidence.

  1. 01

    Day 0

    Brief received

    You send the request form, an e-mail, LINE or WhatsApp message with whatever you have: drawings, a sketch or the main dimensions. A sales engineer is assigned to your project.

    Request formDrawings or sketch

  2. 02

    Within 24 h

    Brief review & clarification

    We check the brief against our checklist (below) and come back once with every open question – crane, collateral loads, openings, delivery term – instead of guessing.

    Clarification list

  3. 03

    Day 1

    Design basis

    We fix the design basis with you: building use, design code, Thai wind speed and seismic zone, live and collateral loads, crane data, steel grades, paint and fire rating.

    Design basis summary

  4. 04

    Day 1–2

    Design or take-off

    Route B: preliminary design and optimisation of frames, bracing, purlins and girts in 3D. Route A: member-by-member take-off of your drawings. Both give an accurate steel weight.

    Preliminary modelSteel weight

  5. 05

    Day 2

    Costing

    Steel, fabrication, bolts, blasting and paint system, intumescent coating where required, piece-marking and packing are priced from the weight and the drawings – no rough per-m² rates.

    Cost breakdown

  6. 06

    Day 2

    Logistics & delivery term

    We plan containers and flat-racks, choose the Thai port (Laem Chabang, Bangkok, Map Ta Phut, Songkhla) and price CIF, or DDP including customs, duties, VAT and trucking to your province.

    Container planCIF / DDP price

  7. 07

    Day 2–3

    Quotation & review meeting

    You receive the full quotation package and we walk you through it online or in Thailand, in English or Thai. Revisions are quick because the model is already built.

    Quotation packageRevision log

After contract, the quotation model becomes the starting point of detailed design.See our post-contract design process

Your input

Information we need for an optimal quotation

The more of this we have, the closer the quotation is to the final contract price – and the more steel we can save. Items marked Essential are enough to start; tick what you already have.

Project & site
Building size & shape
Loads & design code
Openings & accessories
Coating & fire protection
Scope & commercial

What you receive

A quotation package you can compare line by line

Price breakdown

Main frames, secondary steel, bolts, paint and fire protection, packing, freight and – for DDP – duties, VAT and trucking, each shown separately.

Steel weight & kg/m²

Total tonnage and weight per m² of floor area, the fairest way to compare steel offers.

Preliminary drawings

General arrangement plan and typical frame elevation (Route B), or marked-up clarifications on your drawings (Route A).

Design basis

Codes, wind speed, seismic zone, loads, steel grades and coating system the price is based on.

Scope matrix

Who does what: World Steel, your Thai engineer and your local contractor – no grey areas.

Schedule & validity

Drawing, fabrication and shipping lead times, container count, payment terms and price validity.

Value engineering

Where a VE proposal saves money

  1. 01

    Tapered built-up frames

    Columns and rafters follow the bending moment, so steel is placed only where the loads are.

  2. 02

    Optimised bay spacing

    We compare bay spacings against purlin size and frame weight and choose the lightest combination.

  3. 03

    Continuous Z purlins

    Lapped cold-formed Z purlins act as continuous beams – lighter than simple C sections.

  4. 04

    Right loads, not extra loads

    Thai code wind and seismic values for your exact site, instead of generous assumptions.

  5. 05

    Standard connections

    Repeated bolted end-plate details cut fabrication and erection time.

  6. 06

    Smart packing

    Members nested by erection sequence to fill containers – fewer boxes, lower freight.

FAQ

Quotation questions

How long does a quotation take?

A concept quotation for a standard PEB is usually ready within 48 hours once the essential information is complete. Large or complex drawing packages can take up to 5 working days; we confirm the date when we receive your brief.

Can you quote if I only have a sketch?

Yes. That is what the VE proposal is for: give us the size, location, use and any crane or mezzanine, and our engineers design and price the building.

I already have drawings. Can I still get a VE alternative?

Yes. We price your design as drawn (Route A) and, if you want, add a VE alternative priced separately, so you can compare the two side by side.

Which design codes do you work with?

Thai standards (DPT 1311 wind, DPT 1301/1302 seismic, EIT), AISC 360 and MBMA, Eurocode and AS/NZS. Your Thai licensed engineer reviews and signs the final design for the permit.

Is erection included?

World Steel supplies the steel structure and purlins, CIF or DDP. Erection is done by your own or a partner Thai contractor; we provide erection drawings, anchor bolt templates and supervision on request.

Are my drawings kept confidential?

Yes. Drawings are used only to prepare your quotation, and we sign an NDA on request before you send them.

Ready for your quotation?

Choose your route – we reply within one working day.

Ask for a VE proposal Quote to my drawings
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