From Factory to Site: How Aluminium Windows and Doors Are Manufactured, Shipped, and Delivered to Australian and New Zealand Projects

Table of Contents

1. Introduction: The Global Supply Chain for Fenestration
2. Stage 1: Engineering and Design Review
3. Stage 2: Aluminium Extrusion and Surface Treatment
4. Stage 3: Fabrication and Assembly
5. Stage 4: Quality Control and Certification Documentation
6. Stage 5: Packaging and Container Loading
7. Stage 6: International Shipping and Logistics
8. Stage 7: Site Delivery, Installation, and After-Sales Support
9. Comparison Table: Factory-to-Site Timeline by Product Type
10. FAQ: Common Questions About the Supply Process
11. References

1. Introduction: The Global Supply Chain for Fenestration

For Australian and New Zealand builders, developers, and architects sourcing aluminium windows and doors from an overseas manufacturer, the physical journey from a factory in Guangdong, China, to a construction site in Sydney, Melbourne, or Auckland represents a complex chain of engineering, manufacturing, quality assurance, logistics, and on-site coordination. Understanding this process is not merely academic — it directly affects project programming, cash flow, risk management, and ultimately the success or failure of the window and door package.

A typical order of aluminium windows and doors for a mid-size Australian residential project — say, a 12-unit apartment building or a 40-lot townhouse development — involves approximately 15-25 tonnes of finished product, 8-12 weeks of manufacturing and shipping lead time, and documentation packages that must satisfy both Chinese export and Australian import requirements as well as the building certifier’s compliance audit.

This article walks through the end-to-end process, from the moment a builder’s architectural drawings arrive at the factory to the moment the last handle is adjusted on site, using MEICHEN Windows & Doors’ Zhaoqing manufacturing facility as a reference case. The goal is to provide building professionals with a clear, realistic understanding of what to expect — including lead times, quality control checkpoints, documentation milestones, and the critical interfaces between factory and site that determine whether a window package succeeds or fails.

2. Stage 1: Engineering and Design Review

2.1 Drawing Submission and Technical Analysis

The process begins when the client submits architectural drawings — typically in CAD (DWG) or PDF format — showing the building floor plans, elevations, window schedules, and any relevant structural details. The MEICHEN engineering team, led by Technical Director Engineer Tao Huang (20 years of industry experience, 43 national patents including 4 invention patents), conducts a systematic review covering:

• Dimensional verification: Cross-checking window and door dimensions across floor plans, elevations, and schedules. Discrepancies between these documents are surprisingly common — a window shown as 1,800 mm on the plan but 1,500 mm on the elevation — and catching them at the engineering stage avoids expensive site modifications.
• Performance requirement mapping: For each window and door in the schedule, the engineering team determines the required AS2047 or NZS4211 classification based on the site location (wind region), building height, and exposure. This may involve consultation with the project’s structural engineer or building certifier.
• Compliance pathway confirmation: Identifying which certified product series (from MEICHEN’s 48 AS2047-certified and 13 NZS4211-certified products) is appropriate for each opening type and performance requirement.
• Hardware specification: Selecting hinges, locks, rollers, and handles appropriate for the performance classification, corrosivity environment, and accessibility requirements.

2.2 Shop Drawings and Client Approval

Within 5-7 working days of receiving complete architectural documentation, the MEICHEN team produces a full set of shop drawings showing:

• Individual window and door elevations with frame profile cross-sections
• Glass specification and glazing method
• Hardware type and location
• Fixing details (fastener type, spacing, embedment depth)
• Sill flashing and head flashing recommendations
• Interface details with common Australian wall construction types (brick veneer, lightweight cladding, Hebel panel, etc.)

The shop drawings are issued for client review and approval. This is a critical stage — any changes made after fabrication begins incur cost and time penalties, so thorough review by the project architect or builder at this point is essential. Typical revisions involve glass type optimisation (e.g., changing from clear to Low-E to meet BASIX targets), hardware specification (e.g., upgrading from standard to keyed-alike locks), or minor dimensional adjustments as site measurements are confirmed.

2.3 Production Documentation

Once shop drawings are approved, the engineering team generates production documentation:

• Cutting lists: Precise aluminium extrusion lengths for each frame member, accounting for mitre allowance and machining requirements.
• Glass orders: Pane dimensions, glass type, coating orientation, spacer specification, and edgework requirements.
• Hardware schedules: Part numbers, quantities, and hand (left/right) for each hardware component.
• CNC machining programs: Automated tool paths for routing drainage slots, lock cutouts, and hardware preparation.

MEICHEN’s in-house software platform (developed by Engineer Huang) automates this process — it reads the approved shop drawings and generates all production documentation without manual transcription, eliminating a common source of dimensional errors in conventional fabrication workflows. The system also assigns a unique barcode to each window and door unit, which follows the product through every stage of manufacturing, packaging, shipping, and site installation.

3. Stage 2: Aluminium Extrusion and Surface Treatment

3.1 Billet to Profile

The aluminium extrusion process starts with 6063-T5 billets — cylindrical logs of aluminium alloy, approximately 180-200 mm in diameter — heated to approximately 480-500°C in an induction or gas-fired furnace. The heated billet is forced through a steel die under hydraulic pressure (typically 1,500-2,500 tonnes), emerging as a continuous profile with the cross-sectional shape of the window or door frame.

The die design is critical. MEICHEN manufactures its extrusion dies in-house using wire EDM (electrical discharge machining) to achieve profile tolerances of ±0.05 mm on critical dimensions — tighter than the industry standard of ±0.10 mm. This precision is essential for the slim-frame product range, where a 20 mm sight line leaves no margin for profile variation.

After extrusion, the profiles pass through a cooling (quenching) zone, are stretched to straighten and relieve internal stresses, and are cut to billet length (typically 6-7 metres) for ageing. The ageing process — heating to approximately 185°C for 4-6 hours — develops the T5 temper, achieving the required yield strength of 145 MPa minimum.

3.2 Surface Treatment Options

Post-extrusion, the aluminium profiles receive their surface treatment. MEICHEN offers three primary options for Australian and New Zealand projects:

For Australian coastal projects, PVDF fluorocarbon coating is the standard recommendation. The multi-layer system achieves the >3,000-hour salt-spray resistance required for AS4312 Category C4-C5 environments (within 1 km of breaking surf), and the UV-stable fluoropolymer resin ensures colour retention over the 10-year frame warranty period.

All surface-treated profiles undergo QC inspection including:
– Coating thickness measurement (digital gauge, multiple points per profile)
– Adhesion testing (cross-hatch and tape pull-off per ASTM D3359)
– Colour verification against reference standards (spectrophotometer reading of ΔE)
– Gloss level measurement (60° gloss meter)

4. Stage 3: Fabrication and Assembly

4.1 Cutting and Machining

Surface-treated profiles enter the fabrication line, where CNC saws cut each profile to the dimensions specified in the cutting list. MEICHEN’s automated fabrication system uses the barcode assigned during engineering to call up the specific machining program for each profile — the operator scans the barcode, loads the profile into the CNC machining centre, and the machine executes all routing, drilling, and tapping operations automatically.

Key machining operations for a typical window include:

• Mitre cuts: Frame corners are cut at 45° for coped or mitred corner joints, or at 90° for cleated or bracket connections.
• Drainage slots: Oblong slots routed in the base of the outer frame and sill to create the pressure-equalised drainage system. Slot dimensions and positions are critical — deviations from the tested configuration can reduce water penetration performance.
• Hardware preparation: Euro-groove routing for multi-point lock mechanisms, hinge recesses, handle cutouts, and cylinder holes for lock barrels.
• Thermal break insertion: For thermally broken profiles, the PA66 polyamide strips are mechanically rolled into the extrusion grooves, physically separating the interior and exterior aluminium sections.

4.2 Corner Assembly and Sealing

Frame corners are the most structurally critical joints in an aluminium window or door — they must transmit wind loads from the horizontal to the vertical members while maintaining airtightness and watertightness. MEICHEN uses a combination of:

1. Mechanical crimping: Pneumatic corner crimpers compress the aluminium around internal corner cleats, creating a mechanically interlocked joint.
2. Structural sealant injection: A two-part epoxy or polyurethane sealant is injected into the corner joint cavity, bonding the corner faces and providing a watertight seal. For high-wind (N4/C4) rated products, corner reinforcement brackets are inserted before crimping for additional joint strength.
3. End-cap sealing: The open ends of sill and head profiles are sealed with injection-moulded end caps that prevent water entry into the profile cavity at the jamb intersection.

4.3 Glazing

Glazing is performed on dedicated glazing benches with vacuum lifters for handling large or heavy glass units. The process:

1. Setting block placement: Load-bearing setting blocks are positioned at quarter-span points in the bottom glazing rebate to transfer the glass weight to the frame without point-loading.
2. Glazing bead installation: The glass is positioned, and the glazing beads (removable aluminium strips that retain the glass in the frame) are snapped into place. For fixed windows, the beads are on the interior side only (externally glazed for on-site replacement).
3. Gasket insertion: EPDM wedge gaskets are pressed into the gap between the glass and the glazing bead, creating the primary weather seal. The gasket compression is verified with a feeler gauge to ensure consistent contact pressure.
4. Drainage verification: A water test is performed on a sample of glazed units from each batch to verify that the glazing rebate drains freely to the weepholes.

4.4 Hardware Installation

Final assembly includes installation of all operating hardware:

• Hinges (friction stays for awnings, butt hinges for hinged doors, pivot hinges for tilt-and-turn windows)
• Multi-point locks and shootbolts (with adjustment for smooth operation)
• Handles and cylinders (keyed-alike or keyed-to-differ per project specification)
• Rollers and tracks for sliding doors (stainless steel tandem rollers with sealed bearings for coastal applications)
• Weather seals — compression gaskets and brush seals (with mylar fin for improved air and water performance)

Each operable sash is tested for opening force (must not exceed the limits specified in AS2047), locking engagement (all points must engage fully and simultaneously), and smoothness of operation through the full range of travel.

5. Stage 4: Quality Control and Certification Documentation

5.1 In-Process Inspection

Quality control is not a final-stage activity but is integrated throughout the manufacturing process:

• Incoming material inspection: Aluminium billet certificates, glass batch certificates (with optical quality, toughening compliance, and coating specification), hardware certificates of conformance, and sealant/gasket material certifications are verified against project specifications upon receipt.
• Dimensional inspection: Critical dimensions (overall width, height, diagonal squareness, profile wall thickness) are checked at each production stage using calibrated instruments — tape measures for rough dimensions, digital callipers for profile sections, and laser alignment tools for large assemblies. The barcode tracking system records each measurement.
• Hardware function test: 100% of operable sashes are cycle-tested — opened, closed, and locked — to verify correct hardware function.
• Visual inspection: Every finished unit is inspected for surface finish defects (scratches, dents, colour variation), gasket alignment, sealant appearance, and glass cleanliness.

5.2 Final QA Documentation Package

For each order, MEICHEN compiles a comprehensive quality assurance package that includes:

• Factory inspection report: Batch-specific documentation of dimensional checks, hardware tests, and visual inspections, signed by the QC supervisor.
• Material certificates: Certificates of conformance for aluminium extrusions, glass, hardware, gaskets, and sealants, traceable to the batch or heat number.
• Certification documents:
• CSI Certificate of Conformance (AS2047:2014) — Licence No. 7708
• CSI Certificate of Conformance (SNZ TS 4211:2022) — Licence No. 7708
• Bureau Veritas S-mark Licence — No. 3022
• SAI Global StandardsMark Certificate (AS/NZS 2208, AS/NZS 4666)
• Glazing compliance statement: Confirming that the installed glass complies with AS1288 (for Australia) or NZS 4223.2 (for New Zealand), including human impact safety requirements.
• Installation manual: Product-specific instructions covering handling, storage, fixing, sealing, and adjustment.
• Maintenance guide: Cleaning, lubrication, and inspection recommendations for the specific finishes and hardware specified.

This documentation package is provided in English, organised in a format suitable for direct submission to the building certifier. It is shipped in printed form with the consignment and also provided digitally by email on dispatch.

6. Stage 5: Packaging and Container Loading

6.1 Protective Packaging

Proper packaging is essential to prevent damage during the 7,000-9,000 km sea journey from Guangdong to Australian or New Zealand ports. MEICHEN’s standard packaging specification includes:

• Corner protection: High-density foam or moulded plastic corner protectors on all frame corners — the most vulnerable points for impact damage.
• Glass surface protection: Self-adhering polyethylene film applied to glass surfaces to protect against scratching from packaging materials, construction dust, and handling.
• Frame wrapping: Each assembled window or door is wrapped in a layer of medium-density foam sheet (approximately 3-5 mm thick), with an outer layer of corrugated cardboard or heavy-duty plastic shrink wrap.
• Hardware protection: Exposed hardware components — handles, hinges, lock faceplates — receive additional foam or cardboard padding.
• Sash fixation: Operable sashes are locked closed and additionally secured with temporary transport screws to prevent movement during transit. These are clearly marked for removal before installation.

6.2 Crate Construction and Container Loading

Wrapped and protected units are loaded into custom-built timber crates or steel stillages:

• Vertical orientation: Windows and doors are loaded vertically (as they would be installed), which minimises stress on the glass and frame during transport. Units are separated by timber battens or foam spacers to prevent contact.
• Crate construction: Plywood or OSB crates with internal timber framing. The crate base includes forklift channels for mechanical handling. Each crate is labelled with the order number, crate number, contents list, and handling instructions (fragile, this way up, keep dry).
• Container loading: Crates and stillages are loaded into 20-foot or 40-foot high-cube shipping containers. The loading plan is designed to balance weight distribution, prevent shifting during transit (voids are filled with airbags or dunnage), and place the heaviest crates at the bottom.
• Container seal: A unique container seal number is applied and recorded on the bill of lading, providing tamper evidence for the consignee.

6.3 Spare Parts and Consumables

In addition to the fabricated window and door units, each shipment includes:

• Glass replacement units: One or two spare glass units of each glass type (dimensions, coating, spacer) for potential on-site breakage, packed in a separate marked crate.
• Hardware spares: Spare handles, hinges, rollers, and lock cylinders — typically 2-5% of the total hardware count — to cover damaged or lost items.
• Touch-up paint: Colour-matched touch-up paint pens or aerosols for minor site damage repair.
• Installation consumables: A quantity of recommended fixing screws, perimeter sealant (compatible with the specified frame finish), and setting blocks for the installer’s use.

7. Stage 6: International Shipping and Logistics

7.1 Shipping Routes and Transit Times

The typical sea freight route from Guangdong ports (Shenzhen, Guangzhou, or Nansha) to Australian and New Zealand ports:

Transit times are indicative and can vary by 3-7 days depending on weather, port congestion, and shipping line schedules. MEICHEN books freight through established international carriers and provides the client with the vessel name, voyage number, estimated departure and arrival dates, and container number for tracking purposes.

7.2 Documentation for Import and Customs Clearance

Each shipment is accompanied by a complete set of export and import documentation:

• Commercial invoice: Itemised list of products, quantities, unit prices, and total value in the agreed currency (typically AUD or USD).
• Packing list: Detailed breakdown of each crate/stillage, including dimensions, weight, and contents.
• Bill of lading: The carrier’s receipt for the goods, contract of carriage, and document of title. The original bill of lading (or telex release for non-documentary credit transactions) is required for the consignee to take delivery at the destination port.
• Certificate of origin: Issued by the China Council for the Promotion of International Trade (CCPIT), confirming the Chinese origin of the goods. This is important for Australian importers claiming preferential tariff treatment under the China-Australia Free Trade Agreement (ChAFTA).
• Originals of compliance documentation: AS2047 and NZS4211 certificates, S-mark licence, glass compliance statement, and factory inspection reports.

MEICHEN’s logistics team coordinates the documentation flow to ensure that all paperwork arrives at the consignee (or their customs broker) before the vessel arrives, preventing delays at the destination port.

7.3 Destination Handling

Upon arrival at the destination port:

1. Customs clearance: The consignee’s customs broker lodges the import declaration with Australian Border Force or New Zealand Customs Service, using the documentation provided. Import duty on aluminium windows and doors from China into Australia is generally zero under ChAFTA, provided the Certificate of Origin is presented, though GST (10%) applies on the landed value.
2. Quarantine inspection: The Department of Agriculture, Fisheries and Forestry (DAFF) in Australia or the Ministry for Primary Industries (MPI) in New Zealand may inspect the container for biosecurity risks, particularly the timber crating, which must be heat-treated (ISPM 15 compliant) and stamped accordingly.
3. Port charges and delivery: The consignee pays the port service charges, container unpacking fees (if applicable), and arranges road transport — typically by tilt-tray truck or flatbed with a crane (hiab) — to the construction site. MEICHEN can recommend freight forwarders and customs brokers familiar with window and door shipments, but the transport from port to site is the client’s responsibility unless included in a delivered-to-site commercial term.

8. Stage 7: Site Delivery, Installation, and After-Sales Support

8.1 Site Receipt and Inspection

On delivery to site, the builder or installer should:

1. Check the container/crate condition: Note any external damage on the delivery docket before signing.
2. Inventory against the packing list: Verify that all crates are present and that crate seal numbers match the packing list.
3. Inspect for transit damage: Open crates and inspect a representative sample of units for glass breakage, frame damage, or surface finish damage. Any damage should be photographed and reported to MEICHEN’s logistics team within 48 hours of delivery to initiate the claims process.
4. Store correctly: Units should remain in their protective packaging, stored vertically on a level surface in a dry, secure location until installation. Units stored flat are at risk of glass breakage; units stored in direct sunlight with protective film intact may experience difficult film removal if left for extended periods (>30 days).

8.2 Installation Support from the Manufacturer

MEICHEN provides comprehensive installation support to the site team:

• Installation manual: Product-specific instructions covering:
• Required tools and equipment
• Opening preparation and tolerances (plumb, level, square)
• Fixing schedule (fastener type, spacing, edge distance, embedment depth)
• Perimeter sealing and flashing details
• Sash adjustment (hinge friction, lock engagement, roller height for sliding doors)

• Protective film removal timing and technique

• Remote technical support: MEICHEN’s 7×16 hour technical support team is available by phone, video call, or email to answer installation questions, troubleshoot issues, and guide the site team through the installation and adjustment process.

• On-site technical visit (for large projects): For significant projects — multi-residential developments, commercial buildings, or complex curtain wall installations — MEICHEN can arrange for a technical representative to visit the site and provide hands-on installation guidance, commissioning, and installer training. This is arranged on a project-specific basis.

8.3 Post-Installation Warranty and Ongoing Support

Once installed and commissioned, MEICHEN’s warranty and support framework provides:

• 10-year frame warranty: Aluminium extrusions and surface finishes (powder coat or PVDF) warranted against manufacturing defects for 10 years from the date of delivery.
• 10-year glass warranty: Insulating glass units warranted against seal failure (internal condensation between panes) for 10 years.
• 10-year hardware warranty: AS2047-compliant hardware (hinges, locks, handles, rollers) for 10 years; imported premium hardware (ROTO etc.) for up to 15 years.
• Spare parts availability: Product drawings and specifications are archived for a minimum of 10 years, enabling the supply of replacement parts for any MEICHEN window or door throughout its service life.
• Defect resolution: Non-conforming products (manufacturing defects) are replaced free of charge, with MEICHEN covering the replacement product cost and sea freight to the destination port. Technical support guides the local installer through the replacement process.

9. Comparison Table: Factory-to-Site Timeline by Product Type

Note: Timelines are indicative and based on a single-container order. Larger orders may require longer fabrication periods but benefit from production batching efficiencies. Express air freight is available for urgent replacement parts but is not cost-effective for full production orders.

10. FAQ: Common Questions About the Supply Process

Q1: How long does the entire process take from order to site delivery?

For a standard residential window and door order — typical of a single house or small multi-unit development — the total elapsed time from confirmed order to goods arriving at the Australian port is approximately 55-70 days. This breaks down as: engineering and production 25-35 days, sea freight 18-22 days, and customs/delivery 5-7 days. Allow an additional 7-10 working days for site installation by the local contractor. Custom or oversized products add approximately 10-15 days to the production phase. This timeline should be factored into the project construction program at the earliest planning stage.

Q2: What deposit and payment terms does MEICHEN require?

Standard payment terms are 50% deposit with order confirmation, with the balance due prior to shipment or on presentation of shipping documents, depending on the commercial agreement. For repeat clients and large-volume projects, alternative terms — including letters of credit and progress payments — can be arranged on a case-by-case basis.

Q3: What happens if windows or doors are damaged in transit?

Transit damage is rare when products are properly packaged and crated, but it can occur. MEICHEN’s standard procedure: (1) the client documents the damage with photographs and notes it on the delivery receipt; (2) the damage is reported to MEICHEN and the shipping line within 48 hours; (3) MEICHEN coordinates with the shipping line’s claims process and simultaneously initiates production of replacement units for products that are not repairable on site. For urgent items, MEICHEN can express-air-freight replacement components or arrange local supply where possible. The cost allocation depends on whether the damage is attributed to inadequate packaging (manufacturer’s responsibility), rough handling (carrier’s responsibility), or site handling (builder’s responsibility) — hence the importance of inspecting on delivery and documenting any issues before the carrier’s driver leaves the site.

Q4: Can MEICHEN arrange installation in Australia or New Zealand?

MEICHEN is a manufacturer and does not directly employ installation crews in Australia or New Zealand. However, the company has established relationships with qualified installers in major Australian cities and can connect project owners with experienced installation contractors. For large projects, MEICHEN’s technical team can travel to the site to supervise installation, provide installer training, and commission the completed installation. The installation manual, remote technical support, and on-site supervision (where arranged) provide comprehensive support for the local installation contractor.

Q5: What language are the documentation and support provided in?

All client-facing documentation — quotations, shop drawings, compliance certificates, installation manuals, and maintenance guides — is provided in English. Technical support is available in English and Mandarin Chinese. Australian and New Zealand clients interact with MEICHEN’s English-speaking international sales team, led by Annly Zhang, who manages all English-language communication and documentation.

Q6: Can MEICHEN supply replacement parts for windows installed 5 or 10 years ago?

Yes. MEICHEN archives product drawings, specifications, and production records for a minimum of 10 years from the date of delivery. This means that replacement hardware, glass units, seals, or even complete sashes can be manufactured to the original specification and supplied retrospectively. This is a significant advantage over suppliers who do not maintain long-term product archives — without the original specifications, matching replacement parts for a discontinued product range can be extremely difficult.

11. References

External References

1. Standards Australia. (2014). AS2047:2014 — Windows and external glazed doors in buildings. Available from: www.standards.org.au
2. Australian Border Force. Importing Building Products — Guide for Importers. Available from: www.abf.gov.au
3. Department of Agriculture, Fisheries and Forestry (DAFF). ISPM 15 — Timber Packaging Requirements for Import. Available from: www.agriculture.gov.au
4. Australian Glass and Window Association (AGWA). Window Installation Best Practice Guide. Available from: www.agwa.com.au
5. Standards Australia. (2018). AS4654.2:2012 — Waterproofing membranes for external above-ground use — Design and installation. Available from: www.standards.org.au
6. JASANZ. Register of Accredited Conformity Assessment Bodies. Available from: www.jasanz.org

Internal MEICHEN References

• MEICHEN Windows & Doors — How We Work. Available from: mcwindow.com.au
• MEICHEN Windows & Doors — Compliance & Credentials. Available from: mcwindow.com.au/compliance-credentials/

Prepared by the MEICHEN Windows & Doors technical team. For detailed production lead times, shipping schedules, or to discuss your project’s supply chain requirements, contact Annly Zhang at Annly@mcwindow.com.au or +61 490 141 931.