Primary frame
Tapered built-up columns and rafters with bolted end-plate moment connections.
- Section
- Built-up I, web 4–12 mm, flange 8–25 mm
- Material
- ASTM A572 Gr.50 / SS400
- Design
- AISC 360-16, MBMA 2018
Pre-engineered steel building (PEB) solution
One building system, engineered member by member
From anchor bolts to ridge purlins, every part of a World Steel PEB is designed in 3D, checked against international and Thai codes, fabricated in our certified factory and shipped CIF or DDP to your site in Thailand.
2018exporting PEB to Thailand
2,500 Tfabrication capacity per month
IAS AC472accredited – first in Asia
100% IFC3D model for every project
What is a PEB
Steel placed only where the loads are
A pre-engineered building (PEB) is a complete steel building system: tapered built-up portal frames, cold-formed Z purlins and girts, bracing and connections, all designed together by software for your exact span, height, loads and site in Thailand.
Because each frame follows the bending moment along its length, a PEB typically needs noticeably less steel than a frame of standard hot-rolled sections. Every member is cut, drilled and welded in the factory, marked, and arrives on site as a bolted kit – no site welding, faster erection, predictable cost.
- Clear spans without interior columns – ideal for warehouses, factories, logistics and cold storage
- Designed for Thai wind (DPT 1311-50) and seismic zones (DPT 1301/1302-61)
- Bolted site assembly: quicker erection, cleaner site, easy future extension
- One supplier for design, fabrication, coating, packing and delivery
Interactive 3D · IFC 4
Look inside a World Steel PEB
This is a real IFC model of a typical Thai factory: 30 m clear span, 60 m long, 8 bays, 8 m eave, 10 T overhead crane and a side canopy. Rotate, explode, cut, measure, or click any member to read its section, material, standard and scope.
Loading IFC model…
- Size
- 30 x 60 m · 1,800 m²
- Bays
- 8 @ 7.5 m
- Eave height
- 8.0 m · roof slope 1:10
- Crane
- 10 T overhead, bays 2–7
- Steel
- ≈ 52 T · 29 kg/m² (incl. crane runway)
- Elements
- 911 IFC entities with properties
Illustrative reference model. Member sizes for your building come from project-specific design.
Anatomy of a PEB
Eight component groups, one coordinated design
Secondary members
Z purlins and girts lapped over the frames for continuity, eave struts, sag rods.
- Section
- Z/C 150–300, 1.5–3.0 mm
- Material
- G450 / ASTM A653 Gr.50, Z275 galvanised
- Design
- AISI S100-16
Bracing & stability
Rod or angle X-bracing, portal frames where openings prevent bracing, flange braces.
- Section
- Ø16–Ø32 rod, L50–L75
- Material
- ASTM A36 / A572
- Design
- AISC 360-16 Ch. C, D, App. 6
Endwalls & openings
Bearing or expandable endwall frames; framed openings for doors, shutters, louvres.
- Section
- Built-up / cold-formed
- Option
- Expandable endwall = main frame
- Design
- ASCE 7-16 / DPT 1311-50 wind
Base & anchorage
Base plates, anchor bolts, setting templates and a dimensioned anchor bolt plan with reactions.
- Bolts
- ASTM F1554 Gr.36/55, M20–M36
- Plates
- A572 Gr.50, 20–40 mm
- Design
- AISC Design Guide 1, ACI 318
Crane systems
Runway beams, brackets, rails and stoppers for top-running or under-hung cranes.
- Capacity
- Typically 3–50 T
- Class
- CMAA 70 Class A–D
- Design
- AISC Design Guide 7
Canopies, mezzanines & add-ons
Canopies, mezzanine floors, monorails, fascias, parapets and future extensions.
- Mezzanine
- Composite deck, live load to brief
- Canopy
- Cantilever 1.5–6 m
- Design
- Same model, same codes
Coating & fire protection
Shot blasting, primer and finish systems for Thai climates; intumescent paint where fire ratings are required.
- Surface
- Sa 2.5 (ISO 8501-1)
- System
- ISO 12944 C3–C5, TOA / Jotun
- Fire
- Intumescent, R30–R120
PEB vs conventional steel
Why owners in Thailand choose PEB
PEB (World Steel)Conventional hot-rolled frame
Steel weightTapered sections follow the moment – typically lighterConstant sections sized for the worst point
DesignIntegrated 3D model of the whole building, IFC outputMembers designed separately, 2D drawings
FabricationCNC cut, drilled and welded in a certified factoryOften fabricated or modified on site
Site workBolted kit, no site weldingSite cutting and welding common
ProgrammeShorter design–fabricate–erect cycleLonger, more trades on site
Clear spanWide clear spans without interior columnsLarge spans become heavy and costly
Future expansionExpandable endwalls, extra bays bolt onRe-design and site modification
Single responsibilityOne supplier for design, supply, coating and deliverySeveral suppliers and interfaces
Building systems
Frame types we design
Clear span
No interior columns. Warehouses, factories, hangars, sports halls.
Multi-span
Interior columns for very wide buildings – most economical for large logistics parks.
Single slope
Mono-pitch roof for small units, retail and solar-ready roofs.
Lean-to
Added to an existing building or main frame for extra space.
Crane building
Runways for 3–50 T overhead cranes, designed for fatigue.
Mezzanine
Office or storage floors inside the frame, with stairs and handrails.
Design basis & standards
The codes behind every member
We design to the international codes accepted by Thai engineers and authorities, apply Thai load standards for your site, and fabricate under certified quality systems. The project design basis lists the exact codes agreed for your building.
Structural design
- AISC 360-16 / 22Specification for structural steel buildings (LRFD / ASD)
- AISI S100-16Cold-formed steel members (purlins, girts)
- MBMA 2018Metal Building Systems Manual – PEB loads and practice
- AISC Design Guides 1, 7, 16Base plates, crane buildings, end-plate connections
Loads in Thailand
- DPT 1311-50 (มยผ. 1311-50)Wind load and building response, Thai Department of Public Works
- DPT 1301/1302-61 (มยผ. 1301/1302-61)Seismic design of buildings
- ASCE 7-16Load combinations, crane and collateral loads
- Thai Ministerial RegulationsLive loads and building control requirements
Materials
- ASTM A572 Gr.50 · JIS G3101 SS400Plates for built-up frames
- ASTM A653 · AS 1397 G450Galvanised strip for cold-formed sections
- TIS 1227 · TIS 1228Thai standards for hot-rolled and cold-formed sections, where specified
- Mill certificatesEN 10204 3.1 for every heat
Fabrication & welding
- EN 1090-1/-2 EXC3Execution of steel structures – certified
- AS/NZS 5131 CC3Fabrication and erection – certified
- ISO 3834-2Comprehensive welding quality requirements
- AWS D1.1 / D1.3Structural welding of plate and sheet steel
Bolting & tolerances
- ASTM F3125 Gr.A325 / A490High-strength structural bolts
- RCSC 2020Bolted joints – snug-tight / pretensioned
- AISC 303-22Code of standard practice, tolerances
- MBMA Ch. 6Erection tolerances for metal buildings
Coating & quality
- ISO 8501-1 Sa 2.5Blast cleaning before painting
- ISO 12944Corrosion protection, C3–C5 environments
- ASTM A123 / A153Hot-dip galvanising of members and hardware
- ISO 9001 · 14001 · 45001 · IAS AC472Quality, environment, safety, fabricator inspection
Start a project
What we need from you
- Site location (province / industrial estate) for wind and seismic zone
- Width, length, eave height and roof slope – or just the use and area
- Crane capacity, span and class, if any
- Mezzanine, canopy, door and opening requirements
- Roof and wall finish, insulation, skylights (for collateral loads)
- Any owner or consultant specification to follow
What you receive
Deliverables with every PEB
- IFC 3D modelFull building model for coordination with your MEP and civil teams
- Design calculation reportLoads, combinations, member and connection checks
- Anchor bolt plan & reactionsFor your foundation engineer – issued first
- GA & erection drawingsPlans, elevations, sections, member marks
- Shop drawings & CNC dataGenerated from the same model – no re-drawing
- QA dossierMill certificates, weld and coating records, packing lists
From model to site
How the IFC model drives the project
- 01
Design brief
Your requirements and Thai site loads
- 02
3D design
Analysis and IFC model of the whole building
- 03
Approval
Drawings and IFC for your engineer and permit
- 04
Fabrication
CNC data straight from the model
- 05
QA & packing
Inspection, marking, container plans
- 06
CIF / DDP
Shipped to Laem Chabang, Bangkok or your site
FAQ
Questions Thai clients ask us
Is the 3D model a real IFC file?
Yes. It is an IFC 4 file with 911 entities (columns, beams, members, plates, fasteners, footings, coverings), each with a property set for mark, section, material, standard, coating and scope.
Do you provide an IFC model for my project?
Yes. Every World Steel project is modelled in 3D, and the IFC model is part of the deliverables so your consultant, MEP and civil teams can coordinate with the steel structure.
Which codes do you use for buildings in Thailand?
Steel design to AISC 360 and AISI S100 with MBMA practice; wind to DPT 1311-50 and seismic to DPT 1301/1302-61 for your province; welding to AWS D1.1 under ISO 3834-2, EN 1090 EXC3 and AS/NZS 5131 CC3 certified systems. Owner or consultant specifications can be added.
Who supplies the roof sheeting and foundations?
World Steel Thailand supplies the steel structure and purlins. Foundations, slab, roof sheeting and wall cladding are by your local contractor; we provide reactions, anchor bolt plans, fixing lines and quantities from the model.
Can the building be extended later?
Yes. With expandable endwalls or extra bays planned in the model, a PEB can be extended by bolting on new frames with minimal disruption.
Send us your building size – get a PEB design and price
Our engineers return a preliminary design, steel weight and CIF/DDP price for your site in Thailand.