Exterior Double Entry Doors: Custom Factory Supply | Jusen

15 min read

The email lands at 9:47 AM. Subject line: “Need 40 sets of double entry doors for a villa project in Dubai — can you ship in 6 weeks?” No pleasantries. No time for a mood board. That is the reality of B2B procurement, and our team at Jusen Door and Windows Manufacturing Co., Ltd. has answered versions of this question for over a decade.

When a buyer orders exterior double entry doors, they are not buying a product. They are buying certainty. Certainty that the door will not warp after installation. Certainty that the glass will not fog. Certainty that the container arrives without water damage. Certainty that the paperwork clears customs without a delay.

That is what we manufacture.

What Defines a Premium Exterior Double Entry Door? (Our Engineering Standards)

Double entry doors are not simply two single doors placed side by side. The engineering challenges multiply when you double the width. Weight distribution shifts. Wind load increases. The meeting stile — where the two doors close — becomes a potential weak point for both air infiltration and security.

Our engineers start with the physics. A typical double door configuration spans 1,800 mm to 2,400 mm in width. That is a large surface area acting as a sail. In a coastal region with 150 km/h wind gusts, the pressure differential across that door can exceed 1,200 Pascals. If the structural core is not engineered for that load, the door will bow. The hinges will strain. The lock will misalign.

We address this with thermal-break aluminum profiles and engineered solid wood cores. For aluminum, we use polyamide thermal break strips that separate the interior and exterior aluminum skins. This does not just improve insulation — it also adds rigidity. Our technical team calculates the required profile thickness based on the door dimensions and the wind load zone of the destination country. A standard profile might work for a 1,800 mm door. For a 2,400 mm door, we switch to a reinforced multi-chamber profile.

Structural Integrity and Thermal Performance

The real test is not in the factory showroom. It is in the field, three years after installation. Wood moves. Aluminum expands. If the design does not accommodate these forces, the door will fail.

For solid wood double doors, we kiln-dry the timber to a moisture content of 8-12%. This is not a luxury; it is a necessity. If the wood leaves our factory at a higher moisture content, it will shrink in a dry climate like Arizona or crack in a humid climate like Singapore. We also use finger-jointed cores for the stiles and rails, which distributes internal stress more evenly than a single piece of wood.

The Importance of Air-Tightness and Water-Tightness

Double doors are notorious for leaking. The central meeting point is the problem. In a single door, you have weatherstripping on three sides. In a double door, you have it on four sides — plus the critical junction in the middle where the two doors meet.

We use a triple-seal gasket system on our double entry doors. The first seal blocks water. The second seal blocks air. The third seal provides acoustic insulation. But the gaskets alone are not enough. The hardware must pull the doors tightly together to compress those seals.

This is why we use multi-point locking systems with at least three locking points on the active door. The locking points engage at the top, bottom, and center, pulling the door evenly against the frame. A single-point lock on a large double door will cause the top and bottom corners to bow outward, breaking the seal.

Before any shipment leaves our factory, every batch undergoes our strict pre-shipment inspection. We specifically test air-tightness and water-tightness. We do not just look at the door and guess. We use a test chamber that simulates rain and wind pressure to verify the door meets the specified performance class.

Customization: Size, Glass, and Hardware

“Double entry” does not mean a fixed configuration. We manufacture doors with sidelites, transoms, or as a pair of equal doors. We offer glass options ranging from double-glazed units with argon gas filling to laminated safety glass for impact resistance.

On a recent project for a client in Canada, we supplied double doors with low-E coated glass and a warm-edge spacer system. The client needed a U-value below 1.4 W/m²K to meet local energy codes. We adjusted the profile structure and fittings to ensure the entire door assembly — not just the glass — met that requirement.

The hardware is equally customizable. We can source handles, hinges, and locks from European brands like Hoppe or Siegenia, or we can use our preferred suppliers. The choice depends on your budget and the security requirements of your market.

Aluminum vs. Solid Wood: Choosing the Right Material for Your Project

This is the first question we ask every buyer. Not because we want to push one product line over another, but because the wrong choice leads to failures — and failures are expensive for everyone.

Thermal-Break Aluminum Double Doors

Aluminum is our recommendation for most commercial and modern residential projects. The reasons are straightforward: strength-to-weight ratio, corrosion resistance, and slim sightlines.

A thermal-break aluminum door can support a large glass panel without needing a thick, bulky frame. This is crucial for double doors where you want an unobstructed view. The aluminum profile does not rot, does not warp, and requires minimal maintenance.

Our factory produces thermal-break aluminum doors and windows using European-style system profiles. We combine these profiles with our own manufacturing processes — CNC cutting, precision machining, and automated assembly — to ensure consistent quality across large orders.

The downside of aluminum? It is not the right choice for every aesthetic. If you are building a Tudor-style villa in the English countryside, an aluminum door will look out of place.

Solid Wood Double Entry Doors

For luxury residential projects and heritage renovations, solid wood remains the gold standard. The depth of the grain, the warmth of the color, and the sheer presence of a solid wood double door cannot be replicated.

But wood is a living material. It absorbs and releases moisture. It expands and contracts with temperature changes. If you do not engineer for this movement, the door will fail — regardless of how beautiful it looks in the showroom.

Our factory handles solid wood doors with specialized treatment processes. We use engineered cores for stability, then apply a multi-layer finish that protects against UV radiation and moisture ingress. We do not recommend solid wood for projects in extreme climates without a thorough discussion about the expected performance.

Wooden doors are not always the cheapest option. For high-humidity areas, buyers should prioritize moisture resistance over appearance. We have seen beautiful solid wood doors fail within two years in tropical climates because the specifier did not account for the humidity. A thermal-break aluminum door would have lasted decades.

Hybrid Solutions and Custom Designs

The best solution often combines both materials. An aluminum-clad wood door gives you the warmth of wood on the interior and the durability of aluminum on the exterior. The wood faces the room. The aluminum faces the weather.

This is where our OEM and ODM services become valuable. If you have a specific design or material requirement that is not in our standard catalog, our R&D team can develop it. We produce custom villa doors and windows for clients who need something unique — a specific timber species, a custom bronze finish, or a unique glass pattern.

The Jusen Factory Advantage: Why Direct Supply Matters for Your Bottom Line

Every B2B buyer asks the same question: “Why should I buy from you instead of a trading company or a local distributor?”

The answer is simple. We are the factory. There is no middleman between you and the production line.

Eliminating the Middleman Markup

When you buy from a trading company, you are paying for their margin. When you buy from a distributor, you are paying for their warehousing and logistics costs. When you buy from us, you are paying for raw materials, labor, and factory overhead.

Our pricing structure reflects manufacturing costs, not distribution layers. We offer competitive prices without middleman markup. This means you can either increase your profit margin or submit a more competitive bid for your project.

This direct relationship also means faster communication. When you have a technical question, you are not waiting for a salesperson to ask the factory. You are talking to someone who works in the factory.

Global Logistics and Documentation Expertise

International shipping is a minefield for the unprepared. Incorrect customs declarations cause delays. Improper packing causes damage. Missing certificates cause shipments to be rejected at the port.

Our team has rich experience in foreign trade. We provide packing lists, proforma invoices, and full customs documents. We know what documentation is required for different markets — whether you are shipping to the EU, North America, the Middle East, or Southeast Asia.

We handle both FCL (Full Container Load) and LCL (Less than Container Load) shipments. For LCL shipments, we use reinforced export-grade packing to protect the doors during consolidation and handling at transshipment ports.

A common mistake we see from less experienced factories is under-packaging. They wrap the door in plastic and hope for the best. We use a combination of moisture barrier film, corner protectors, and wooden crates or pallets. The glass is protected with additional foam padding. The hardware is packed separately in labeled boxes to prevent loss.

Meeting Local Building Codes and Standards

This is the fear that keeps every importer awake at night: the shipment arrives, the doors are installed, and then the building inspector fails them because they do not meet the local code.

We address this through our adjustable profile structure and fittings. Our doors are designed to be adapted to the building codes of your target market. If your market requires a specific fire rating, we can adjust the materials. If your market requires specific wind load certifications, we can provide the test data.

We are not just exporting a product. We are exporting a solution that will pass inspection. We have supplied doors to projects in over 30 countries, and our engineering team maintains a database of common building code requirements across major markets.

Quality Assurance: Our Pre-Shipment Inspection Protocol

Quality control is not a department at our factory. It is the first step of every production order and the last step before the container is sealed.

Simulating Real-World Conditions

Visual inspection is not enough. A door can look perfect and still fail performance tests. We test the actual function of the door under simulated conditions.

Our strict pre-shipment inspection includes wind resistance tests. For exterior double entry doors, this is critical. The large surface area of a double door acts like a sail. If the door is not structurally adequate, the wind will push it inward or pull it outward, causing permanent deformation.

We test the door in a sealed chamber, applying pressure differentials that simulate wind speeds up to 180 km/h. The door must return to its original shape and function without any permanent damage.

We also test water tightness by spraying water at the door while applying air pressure differentials. This simulates a rainstorm combined with wind. Any water infiltration beyond the specified class results in a failed test.

Hardware and Fitting Durability Checks

The hardware on a double entry door carries a heavy load. A solid wood double door can weigh 80 to 120 kilograms per leaf. The hinges must support that weight for years of daily use.

We test the cycle life of our hardware by opening and closing the door 50,000 times. We check for hinge wear, lock alignment, and handle looseness. We source hardware accessories from established manufacturers and test them to ensure they match the weight and usage frequency of the door.

A door that fails after six months is not a door — it is a liability. Our testing protocol is designed to prevent that liability from reaching your project site.

Packaging for Ocean Freight

The journey from our factory to your project site can take 20 to 45 days by sea. During that time, the container will experience temperature fluctuations, humidity, and vibration.

Our packing process is designed for this environment. We use a multi-layer protection system:

• A moisture barrier film wrapped directly around the door
• A layer of foam padding on all corners and edges
• A wooden frame or crate that supports the door and prevents bending
• Desiccant packs inside the crate to absorb any residual moisture

For doors with glass, we use additional protection — a corrugated cardboard layer over the glass surface followed by a rigid foam board. We have shipped thousands of doors across the Pacific and the Atlantic. We know how to protect the finish and glass for the long journey of FCL and LCL shipments.

Case Scenarios: How Our Double Doors Fit Various Projects

Different projects have different requirements. Here is how our exterior double entry doors are applied across three common sectors.

High-End Residential Villas

For luxury villas, the entrance door is the statement piece. It is the first thing guests see. It needs to be impressive.

We supply custom villa doors and windows for this segment. The aesthetic flexibility is essential — we can match specific architectural styles, from Mediterranean to modern minimalist. For a villa project in California, we supplied double doors in white oak with a matte lacquer finish and vertical brushed stainless steel handles. The doors were 2.4 meters high and featured slim-profile double glazing.

The key for this segment is customization. No two villas are identical, and the entrance door must be tailored to the specific architecture.

Commercial and Hospitality Projects

Hotels, restaurants, and office buildings need doors that can handle high traffic. A door that is opened and closed hundreds of times per day needs robust hardware and a durable finish.

For commercial projects, we typically recommend thermal-break aluminum doors. They are lighter than solid wood, which reduces stress on the hinges. They are also more resistant to scratches and impacts.

Our construction project bulk supply capability is crucial here. A hotel project might require 200 sets of double doors, all identical. We ensure consistent quality across the entire order. We also coordinate the production schedule to match the construction timeline, so the doors arrive when they are needed — not too early (taking up storage space) and not too late (delaying the project).

OEM/ODM Partnerships

Many of our clients do not sell doors under our brand. They sell them under their own brand. We are the manufacturing engine behind their product line.

Our OEM, ODM, and Private Label services are designed for this. We manufacture the doors to your specifications, apply your branding, and ship them directly to your customers. You focus on sales, marketing, and installation. We handle the factory floor.

This arrangement works well for importers who have established distribution networks but do not want to invest in their own manufacturing facilities. We are an extension of your business.

Frequently Asked Questions

Q1: What is the minimum order quantity (MOQ) for custom exterior double entry doors?

We do not have a rigid MOQ that applies to all situations. We understand that projects vary in size. While we are equipped for bulk supply for large construction projects, we also accommodate smaller orders for specific developments. The practical minimum is usually one container load for standard products, but we can discuss your specific project volume. Contact our team with your quantities, and we will provide a clear answer.

Q2: Can you manufacture double doors to match specific architectural styles or local regulations?

Yes. This is one of our core capabilities. Our engineering team can adjust the profile structure and fittings to match the local building codes of your target markets. We offer full customization on size, color, glass, and hardware. If your project requires a specific fire rating, wind load certification, or thermal performance, we can engineer the door to meet those requirements.

Q3: How do you ensure the doors are not damaged during international shipping?

Damage during shipping is usually caused by inadequate packing. Our export-grade packaging is designed for ocean freight. We use moisture barriers, foam padding, and wooden crates to protect the doors. We handle both FCL and LCL shipments and provide all necessary customs documents. Our trade experience means we know the common failure points in the shipping process and we design our packing to address them.

Q4: What is the difference between your aluminum and solid wood double doors?

Our thermal-break aluminum doors offer superior slim profiles, weather resistance, and low maintenance. They are ideal for modern architecture and commercial projects. Our solid wood doors offer classic aesthetics and a premium feel, but they require more consideration regarding climate and maintenance. We can advise on the best material based on your project location and design intent. There is no universal “best” — only the best fit for your specific situation.

Q5: Do you offer private labeling or OEM services for our brand?

Absolutely. We provide OEM, ODM, and Private Label services. We can manufacture the doors to your specifications and apply your branding. This allows you to sell the doors as your own product line without investing in manufacturing infrastructure. We handle the production, quality control, and logistics. You handle the sales and distribution.

Q6: What is your typical lead time for a container order of double doors?

Lead time depends on the complexity of the order. For standard designs with our standard profiles, we typically need 25-35 days from confirmation of the order to completion of production. For fully custom designs with unique materials or hardware, the lead time extends to 45-60 days. We provide a confirmed production schedule before you place the order, so there are no surprises.

How to Choose the Right Double Door Supplier

Not every factory is right for every buyer. Here is a practical decision guide based on what we have learned from working with clients across different markets.

Choose a direct factory partner if:

• You are ordering in container volumes and need competitive pricing
• You require custom engineering to meet local building codes
• You want single-point accountability for quality and delivery
• You are planning repeat orders and want a consistent supply chain

Choose a local distributor if:

• You only need one or two doors for a single project
• You require immediate availability with no lead time
• You need a local warranty and service support
• You are not prepared to handle import logistics

Choose Jusen if:

• You value direct factory pricing without middleman markup
• You need full customization on size, color, glass, and hardware
• You require pre-shipment testing for air-tightness, water-tightness, and wind resistance
• You want a partner with foreign trade experience who can handle the documentation
• You need flexible shipping options — FCL or LCL — with export-grade packing

We are not the right choice for every buyer. If you need a single door delivered tomorrow, a local supplier is a better option. But if you are planning a project that requires multiple doors, custom specifications, and reliable quality at scale, we should have a conversation.

The buyers who succeed with us are the ones who plan ahead. They share their project timeline, their technical requirements, and their target price early. That gives us the time to engineer the right solution and schedule the production.

When you are ready to discuss your project, our team is ready. We will talk about your specific requirements, provide honest advice on materials and engineering, and give you a competitive quotation.

Get a Free Quote

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References

[1] Fenestration and Glazing Industry Alliance (FGIA). AAMA/WDMA/CSA 101/I.S.2/A440: Standard Specification for Windows, Doors, and Unit Skylights. https://fgiaonline.org/

[2] European Committee for Standardization. EN 14351-1:2006+A2:2016 — Windows and doors. Product standard, performance characteristics. https://www.cencenelec.eu/

[3] American Architectural Manufacturers Association (AAMA). AAMA 501.1: Standard Test Method for Water Penetration of Windows, Curtain Walls and Doors Using Dynamic Pressure. https://fgiaonline.org/

[4] International Code Council. 2021 International Building Code (IBC) — Chapter 17: Special Inspections and Tests. https://www.iccsafe.org/

[5] Passive House Institute. Criteria for Passive House Certification — Window and Door Components. https://passivehouse.com/