Prefabricated Houses

Construction site accommodation, seasonal housing and modular offices across Poland are built with prefabricated houses and steel structures. Sino East Steel manufactures prefabricated houses and modular steel buildings as a certified factory in China, supplying light-steel frame houses, container-type modules and drywall steel framing systems to Polish developers, contractors and housing associations. As the manufacturer, we offer complete kits with structural design support, EN-standard documentation and containerised shipping to Baltic ports — a fast, cost-effective way to deliver quality housing to the Polish market.
Prefabricated Houses — Fast, Affordable, Relocatable BuildingsPrefabricated houses are factory-built steel-framed buildings delivered as complete or semi-finished units for fast installation on site. They serve as temporary or permanent housing, site offices, dormitories, canteens, clinics, guard houses and camp accommodation for projects anywhere in the world. Sino East Steel manufactures prefabricated houses on a galvanized steel frame with sandwich panel walls and roofs (EPS, rock wool or PU core), supplied flat-packed for economical container shipping or as modular units ready to crane into place. Single units, expanded units and multi-room complexes are available, with electrical and plumbing kits pre-installed on request.
Factory Production of Modular BuildingsThe galvanized steel frame is fabricated and drilled to a precise grid, then clad with sandwich panels in a controlled factory environment — which avoids the weather delays and quality variability of on-site construction. Doors, windows and utility openings are prepared in the panels, and units are assembled, checked and flat-packed with numbered components and an assembly drawing. A two-person crew can erect a standard unit in one to two days with basic hand tools.
ApplicationsPrefabricated houses are used for construction site accommodation, mining and energy project camps, disaster relief housing, remote area schools and clinics, border and security posts, agricultural buildings, and budget housing developments. For Polish clients, they also serve as weekend houses, garden offices and workshop annexes that can be erected without heavy cranes and relocated when needs change.
Choosing the Right House TypeStandard single units (approx. 18–21 m²) suit offices and single accommodation; expanded units double the usable space when combined; and multi-unit complexes can be designed for camps of any size. Select the sandwich panel core by climate: EPS for economy, rock wool for fire resistance, and PU for the best insulation in cold regions. Provide your floor plan requirements and local wind/snow loads, and we will size the frame and panels accordingly.
Standards, Grades & Equivalents

StandardGradeTypical Use
FrameGalvanized steelQ235 / Q355 structural tubeWall panelEPS / rock wool / PU50 – 100 mm coreFloorOSB / steel deckwith insulation
Available Sizes & Range

ItemRangeNotes
Single unit3 x 6 m (18 m2)flat-packed or modularExpanded unit3 x 9 m (27 m2)combines two unitsComplexcustommulti-room camps
Specification Deep-Dive for Prefabricated Houses & Modular BuildingsPrefabricated houses from our factory are light-steel frame buildings using galvanized C-sections and U-sections (typically 0.75-1.5 mm Z275 steel) as the structural skeleton, with OSB or fibre-cement cladding, mineral wool insulation (80-150 mm, achieving U-values suitable for Polish climate), vapour barriers and internal gypsum lining. Structural calculations are prepared to Eurocodes (wind and snow loads for the Polish zone), and designs range from single-site cabins (20-40 m²) to multi-module accommodation blocks (up to several hundred m²). Container-type modules use welded steel frames with corner castings for fast crane assembly. Kits include all structural members, fasteners, insulation, cladding, doors and windows documentation, and assembly drawings. Shipping: flat-packed kits in 40 ft containers or complete modules on flat racks, delivered to Gdansk/Gdynia within 25-35 days. Our engineers support local assembly with remote supervision, and all steel is hot-dip galvanized or colour-coated for 20+ year service life. Polish developers, contractors and housing associations use this route to deliver site accommodation and affordable housing fast and predictably.
Ordering Prefabricated Houses and Modular BuildingsTell us the building type (site accommodation, housing unit, office module, light-steel frame), floor area, layout and finish level. Our engineers prepare a kit list, structural calculations and shipping plan, and we quote complete delivered cost to Polish ports. Containerised kits ship quickly and are assembled on site with local labour and our remote technical support.
Quality Control & CertificationEvery batch of material delivered from our Tianjin plant passes through a documented inspection routine: chemical composition analysis, tensile and yield testing, dimensional checks and, where applicable, hydrostatic or flattening tests. Each consignment ships with an EN 10204 3.1 mill test certificate (MTC) and batch traceability records, so your incoming inspection at Gdansk, Gdynia, Szczecin or any other EU port is straightforward. The factory operates under an ISO 9001:2015 quality management system and is independently audited by SGS and TUV Rheinland for production capacity and export reliability.
Export Documentation IncludedEvery order is shipped with a complete documentation set: commercial invoice, packing list, bill of lading, certificate of origin, and the EN 10204 3.1 mill test certificate with heat numbers and test results. Where your project requires third-party inspection, we can arrange SGS, TUV or Bureau Veritas inspection before loading, with the inspection report issued in English for easy clearance in the EU.
Why European Buyers Source This Product from Sino East SteelImporting steel from China to Poland is a routine, well-understood process when you work with a manufacturer that has done it hundreds of times. Sino East Steel combines factory-direct pricing with export experience across the EU, so you avoid the margin stack of trading companies and the documentation delays that slow down first-time imports. Our export team prepares commercial invoices, packing lists, certificates of origin, and the EN 10204 3.1 mill certificates your quality department and customs broker expect. We also coordinate vessel booking from Tianjin/Xingang to Baltic ports, and for regular customers we can hold production slots so repeat orders keep your warehouse stocked without interruption.Because we are the manufacturer, specification changes, coating requirements, packing instructions and delivery dates are agreed directly with the people who control the production line. This transparency is what distributors and contractors in Poland value most: one accountable partner, one set of documents, and material that matches the sample on every shipment.
Packaging & Delivery to Poland and the EUProducts are packed in seaworthy export condition: steel strapping, waterproof wrapping, and wooden or steel pallets where required, with clear marking for safe handling. For pipe and tube orders we use the standard export bundle format with plastic end caps on request. Sea freight to Polish and Baltic ports (Gdansk, Gdynia, Szczecin, Klaipeda) is arranged from Tianjin or Xingang port, with typical lead times of 15–25 days after production. FCL and LCL options are both available, and mixed-container consolidation is offered for regular customers who combine several product lines in one delivery.
Customization & Value-Added ServicesBeyond standard supply, our finishing lines can prepare material for your exact production step: cutting to length, drilling, bevelling, threading, coating, marking and custom bundling per your drawings. Packaging can be adapted to your handling equipment — pallets, frames, slings or individual protective wrapping — and private labeling is available for distributors who resell under their own brand. For customers with regular monthly programs, we schedule production slots so that reorder quantities arrive on time, allowing you to run leaner stock without risking supply gaps on your own production line.
Technical Support & After-Sales ServiceOur export engineers support you from specification to installation: confirming grade and size selections, advising on coatings and packing for your climate and handling equipment, and answering technical questions from your quality department. After delivery, we keep the batch records on file and can issue additional documentation, arrange replacement paperwork, or support you in the rare case of a claim. For Polish customers this means a single point of contact who knows your orders, your specifications and your delivery history — service that trading intermediaries rarely match.
Inspection & Testing Before ShipmentBefore any material leaves the plant it passes through a defined inspection gate. Dimensional checks are performed against the ordered specification, surface quality is inspected visually and with instruments where required, and the relevant mechanical and chemical tests are verified against the mill certificate. For pipe and tube products, hydrostatic and non-destructive testing results are reviewed against the standard’s acceptance criteria. Customers who request it can witness the inspection or receive photographs and video of the loaded goods before the vessel sails — a practical way to build confidence without travelling to China.
How to Order & Request a QuotationTo receive a firm quotation, please send your required specification: grade and standard, dimensions, quantities (in tons or pieces), end use, and the destination port in Poland or the EU. Our export team replies within 24 hours with pricing, availability and a proposed shipping schedule. We work with T/T and L/C payment terms, and for established EU customers longer payment arrangements can be discussed on a project basis.Request a quote: use the contact form, WhatsApp +86-186-2208-8833, or email [email protected].
Frequently Asked Questions
Are prefabricated houses shipped flat-packed?Yes, standard units are flat-packed into a compact bundle that loads efficiently into a 20 ft or 40 ft container. This reduces freight cost per house significantly compared to shipping assembled units.
Can you provide installation instructions and support?Each shipment includes a step-by-step assembly manual with numbered parts and a parts list. Video guidance and remote technical support can be arranged for larger projects.
Do you provide structural design and calculations?Yes. Our engineers prepare structural calculations, wind and snow load checks to Eurocode, and assembly drawings for every house kit, so your local structural engineer can approve the design quickly.
How are prefab house kits shipped to Poland?Kits are packed in containers with all panels, fasteners, insulation and documentation, shipped to Gdansk or Gdynia within 25–35 days, and assembled on site with local labour.
What documents do you provide with each shipment?Each shipment includes the EN 10204 3.1 mill test certificate, packing list, commercial invoice and bill of lading. Inspection reports and third-party certificates (SGS, TUV, Bureau Veritas) can be arranged before loading if your project requires them.
Can you supply to Polish and European standards?Yes. We regularly export to EN and DIN specifications used across the EU, including EN 10219, EN 39, EN 10210, EN 10305 and DIN 2440, in addition to ASTM and API standards. Tell us the standard your project specifies and we will quote accordingly.
What are your MOQ and lead times?MOQ depends on the product and size — typically from 1 to 10 tons for standard lines. Production and shipping to Polish ports normally takes 15–25 days from order confirmation.
Do you ship to Polish ports and handle customs paperwork?Yes. We ship FOB Tianjin/Xingang, CIF or CFR to Gdansk, Gdynia, Szczecin and other Baltic ports, and we prepare the export documentation (commercial invoice, packing list, bill of lading, certificate of origin, mill certificates) needed for import clearance in Poland.
Can we arrange a pre-shipment inspection?Yes. Third-party inspection by SGS, TUV, Bureau Veritas or your own representative can be arranged before loading, and the inspection report is provided before the vessel departs.
Do you offer samples before a full order?For most products we can provide small samples or cut pieces so your quality department can verify the material. Sample cost is credited against the first order for regular customers.
About Sino East Steel — Sino East Steel is a factory-direct manufacturer and exporter of carbon steel, galvanized steel and structural steel products, operating from a 65,000 m² production base in Tianjin, China. Since 2005 the company has built a steady export record across Europe, the Middle East and the Americas, supplying distributors, contractors and engineering companies that require consistent quality, complete documentation and dependable delivery. For Polish buyers, this means a single certified source for pipes, coils, sheets, bars and structures, with every shipment supported by mill test certificates and traceable batch records.
Sourcing This Product from China to Poland — What to ExpectImporting steel from China to Poland is a standard, well-documented process when the manufacturer manages it end to end. After you confirm the specification, we issue a proforma invoice with price, production time and shipping terms (FOB Tianjin/Xingang, CIF or CFR to Gdansk, Gdynia, Szczecin or Klaipeda), produce and inspect the material, prepare the full export documentation set, and book the vessel. Total lead time from order confirmation to arrival at a Polish port is typically 15–25 days for standard products. Polish importers pay import VAT and customs duties at the EU border using the commercial invoice, packing list and certificate of origin we provide; the EN 10204 3.1 mill certificates satisfy your quality department and any project documentation requirements. For first orders we recommend a trial container with the most popular sizes, so you can verify material, documents and delivery performance before committing to a larger supply program.