Double Entry Door with Glass | Custom Factory Direct Supply

12 min read

The first thing a visitor notices about a building is rarely the roof. It is the entrance. And when that entrance is a double entry door with glass, the building communicates something specific—openness, scale, and a certain standard of construction quality.

We have been manufacturing these doors at our factory for over a decade. In that time, we have shipped thousands of units to contractors, architects, and importers across North America, Europe, the Middle East, and Southeast Asia. This guide covers what we have learned about designing, testing, and shipping double entry doors with glass—so you know what to ask for before you place an order.

By the end of this article, you will understand the technical specifications that matter, the customization options available, and why sourcing directly from our production line changes your cost structure.

—

Double Entry Door with Glass: Design Configurations and Glass Options We Offer

Double entry doors are not a single product category. They are a family of configurations, each suited to different traffic patterns and architectural styles. We manufacture both thermal-break aluminum and solid wood series, and the choice between them affects everything from sightlines to hardware weight.

Single vs. Double Active Panels: Matching Traffic Flow

The first decision is whether both leaves should open or just one.

A double active configuration—where both doors swing—suits high-traffic commercial entrances, hotel lobbies, and medical facilities. People move through both leaves, reducing congestion during peak hours. The trade-off is that double active doors require floor springs or heavy-duty hinges on both sides, which adds to the hardware cost.

A single active configuration—one fixed leaf, one operating leaf—is more common in residential villas and boutique retail spaces. It offers the grand visual width of a double door while limiting daily wear to one set of hinges and locks. This configuration also performs better in wind-prone areas because the fixed leaf provides additional structural rigidity.

When you send us your architectural drawings, our engineering team reviews the traffic flow and recommends the appropriate configuration. We do not assume—we calculate.

Thermal-Break Aluminum vs. Solid Wood Frames

The frame material determines the door’s lifespan, energy performance, and maintenance requirements.

Our thermal-break aluminum series uses polyamide strips to separate the interior and exterior aluminum profiles. This breaks the thermal bridge, reducing heat transfer by up to 40% compared to non-thermal-break profiles. The slim sightlines—as narrow as 50mm—allow for larger glass panels, maximizing natural light. This is our recommended choice for modern commercial projects and high-end residential builds in climates with extreme temperature swings.

Our solid wood series uses kiln-dried hardwoods such as oak, mahogany, or sapele. Wood offers natural insulation and a warmth that aluminum cannot replicate. However, wood requires more maintenance in humid or coastal environments. For buyers in Southeast Asia or the Gulf region, we typically recommend aluminum with wood-grain finishes instead of solid wood—this is an honest caveat we share with every client considering wood for tropical climates.

Glass and Glazing Choices for Every Climate

The glass is where performance and aesthetics converge. We offer several glazing options, each engineered for specific conditions:

• Double glazing (24mm overall thickness): Standard for most markets. Two 5mm glass panes with a 14mm argon-filled cavity.
• Low-E coated glass: Reflects infrared radiation while allowing visible light through. Reduces solar heat gain by up to 30% in hot climates.
• Tempered safety glass: Required by code in most commercial applications. We use fully tempered glass that shatters into small, blunt pieces upon breakage.
• Tinted or reflective glass: Available in bronze, grey, or blue tones. Reduces glare and improves privacy while maintaining outward visibility.

The glazing choice affects the door’s weight and the hardware required to support it. A double entry door with 10mm tempered glass weighs significantly more than one with standard 5mm panes. Our engineering team calculates the hinge and frame specifications accordingly—this is not something you can improvise on-site.

—

Engineering for Performance: Air-Tightness, Water-Tightness, and Wind Resistance

A beautiful door that leaks air or water is a liability. Every double entry door with glass we produce undergoes rigorous testing before it leaves our factory. This is not a marketing claim; it is a standard procedure.

The Science Behind the Seal

The seal is where most manufacturers cut corners. We do not.

Our double entry doors feature multi-point locking systems—typically 6 to 8 locking points per active leaf—that compress the door against a continuous EPDM gasket. This compression creates an airtight seal that prevents drafts, dust, and moisture infiltration.

When we test for air-tightness, we use a dedicated testing chamber that pressurizes the door to simulate wind conditions. We measure air leakage in cubic meters per hour per square meter. Our thermal-break aluminum double doors typically achieve Class 8 (the highest rating) under the EN 12207 standard. Solid wood doors achieve Class 7 due to the natural properties of wood—an honest trade-off we discuss with clients who prioritize wood aesthetics.

Structural Integrity for Large-Scale Openings

Double doors are wide. A standard double entry door with glass can span 1,800mm to 2,400mm. At that width, frame sag becomes a real risk.

We address this with hidden steel reinforcement inside the aluminum profiles. For openings wider than 2,000mm, we insert a galvanized steel core that prevents the frame from twisting or sagging under the weight of the glass. This reinforcement also improves the door’s wind resistance—critical for buildings in coastal areas or high-rise towers.

Our wind resistance tests follow the EN 12211 standard. We test doors at pressure differentials up to 2,000 Pa (equivalent to a Category 4 hurricane). If a door is destined for a cyclone-prone region, we can increase the reinforcement and test at higher pressures. This is a customization we offer, not a standard feature.

Hardware that Lasts

The hinges and locks on a double entry door with glass bear more load than those on a single door. Standard residential hinges will fail within months.

We use stainless steel heavy-duty hinges with ball bearings, rated for at least 200,000 cycles. For doors exceeding 100kg per leaf, we recommend floor springs, which transfer the door’s weight to the floor rather than the frame. This extends the lifespan of both the door and the surrounding wall structure.

Hardware finishes are customizable. We offer stainless steel, brass, matte black, and bronze options. Our team can also source specific locking mechanisms to meet local security standards—for example, multi-point locks with anti-drill cylinders for European markets or mortise locks with deadbolts for North America.

—

The Customization Process: From Raw Profiles to Your Exact Specifications

Standard sizes exist, but most of our clients do not need them. They need doors that fit specific openings, match specific design languages, and comply with specific building codes.

Our customization process begins with your drawings.

Size and Proportion Adjustments

When you send us your architectural plans, our engineering team reviews the opening dimensions, wall thickness, and installation method. We then adjust the profile structure—the width and depth of the frames—to match your specifications.

For example, a double entry door with glass for a European project might require a 85mm frame depth to accommodate thicker insulation in passive-house construction. A Middle Eastern project might require a 65mm frame depth with reinforced wind-load capacity. We adjust the profiles accordingly, not the other way around.

We also ensure compliance with local building codes. Our adjustable profile structure allows us to meet the fire-rating requirements of different markets. For projects requiring fire-rated doors, we use specialized intumescent seals that expand when exposed to heat, preventing smoke and flames from passing through the gaps.

Color and Finish Matching

Color matching is where many buyers underestimate the complexity.

For aluminum doors, we offer powder coating in any RAL color. Our coating line applies a 60-80 micron layer that resists chalking and fading for up to 10 years. We also offer anodized finishes for a metallic look that does not fade.

For solid wood doors, we offer a range of veneers and stains. Our finishing team can match any wood species—oak, walnut, cherry, or exotic options like zebrano. The finish is applied in multiple layers with intermediate sanding, resulting in a surface that is smooth to the touch and resistant to moisture.

We do not charge extra for color matching. It is part of our standard OEM/ODM service.

OEM and Private Label Support

We manufacture double entry doors with glass under our clients’ brand names. This is not a special request; it is a core service.

When you partner with us for private label production, we customize:

• The hardware branding (hinges, locks, handles)
• The glass etching or marking
• The packaging and labeling
• The installation manual and warranty documents

We also adapt fittings and locking mechanisms to align with the security standards of your target market. If you sell into Germany, your doors need DIN-certified hardware. If you sell into the UAE, your doors should meet the Civil Defense requirements. We manage these specifications for you.

—

Why Sourcing Directly from Our Factory Gives You a Competitive Edge

Price is not the only reason to source directly from a factory. But it is a significant one.

Eliminating the Middleman Markup

When you buy from a trading company or a distributor, you are paying for their overhead, their logistics, and their profit margin. When you buy directly from our factory, you eliminate those layers.

Our pricing reflects the actual cost of materials, labor, and overhead. For a double entry door with glass, the factory-direct price is typically 15-25% lower than what you would pay through a middleman. For bulk construction projects, this difference translates into significant savings.

We also offer better payment terms for direct clients. Standard terms are 30% deposit and 70% before shipment, but for established importers with a track record, we can negotiate more favorable arrangements.

Global Logistics and Documentation

We have shipped to over 40 countries. This experience means we know the documentation requirements for each market.

Every order includes:

• Commercial invoice with HS code classification
• Packing list with detailed weights and dimensions
• Bill of lading (for FCL shipments) or house bill (for LCL shipments)
• Certificate of origin (if required by your country’s trade agreement with China)
• Inspection reports from our pre-shipment quality checks

We advise clients on the most economical shipping method. For a double entry door with glass, the weight and volume vary significantly based on configuration. An LCL shipment makes sense for sample orders or small quantities. For orders exceeding 15 cubic meters, an FCL container is almost always more cost-effective. Our logistics team calculates both options and recommends the best choice.

Protecting Your Investment with Secure Packing

Glass doors break during shipping when they are packed poorly. This is a fact of the industry.

We pack every double entry door with glass in a reinforced wooden crate. The door is first wrapped in protective foam, then placed in a crate with internal bracing that prevents movement during transit. For glass panels, we add extra corner protection and a desiccant packet to absorb moisture.

Our packing method has a claim rate of less than 0.5% over the past five years. We do not say this to boast—we say it because it is the standard your shipment should meet.

—

How to Partner with Us: From Inquiry to Installation

The process of ordering a custom double entry door with glass is straightforward when you work with an experienced factory.

Step-by-Step Workflow

Step 1: Submit your specifications. This can be a drawing, a dimension list, or even a photo of a door you want to replicate. The more detail you provide, the faster we can quote.

Step 2: Receive our quotation. Our engineering team reviews your specifications and provides a detailed quote within 24-48 hours. The quote includes material costs, customization costs, packing, and estimated shipping.

Step 3: Approve samples (if required). For large orders, we recommend a pre-production sample. This allows you to verify the finish, hardware, and overall quality before mass production begins.

Step 4: Production and inspection. Once you approve the sample, we begin production. Before shipment, every door undergoes our pre-shipment inspection—air-tightness, water-tightness, and wind resistance tests.

Step 5: Delivery. We arrange shipping, provide all customs documents, and track the shipment until it reaches your port.

MOQ and Lead Times

Our minimum order quantity is 10 units for standard configurations and 5 units for custom designs. This MOQ is flexible for construction projects with phased delivery requirements.

Lead times depend on the complexity of the order:

• Standard configurations: 15-20 days from sample approval
• Custom sizes with standard profiles: 20-25 days
• Custom profiles and special hardware: 30-40 days

We understand that construction schedules are tight. We provide a production schedule with your order confirmation and update you weekly on progress.

Technical Support and After-Sales

Our relationship does not end at the port.

We provide installation guidance—either through detailed manuals, video instructions, or remote support from our technical team. If you encounter any issues with the doors during installation, we troubleshoot with you in real time.

For warranty claims, we require photographic evidence of the issue. If the problem is a manufacturing defect, we replace the affected parts or doors free of charge. This is our policy, and we have honored it consistently.

—

Frequently Asked Questions

Q1: Can you customize the size of a double entry door with glass for a commercial project?

Yes. Full customization on size is our standard service. We adjust the profile structure and fittings to match your exact architectural drawings and local building codes. Whether you need a 1,800mm or 2,400mm opening, we manufacture precisely to your specifications.

Q2: What is the difference between thermal-break aluminum and solid wood for these doors?

Thermal-break aluminum offers superior energy efficiency and slim profiles, making it ideal for modern architecture and extreme climates. Solid wood offers classic aesthetics and natural insulation, but requires more maintenance in humid environments. We manufacture both, so the choice depends on your project’s priorities.

Q3: Do you provide all necessary documents for customs clearance?

Yes. We have rich experience in foreign trade. We provide a packing list, proforma invoice, and full customs documents to ensure smooth FCL or LCL shipping. For markets with specific requirements—such as the EU’s CE marking or the US’s NFRC certification—we can provide the necessary technical documentation.

Q4: How do you ensure the glass doesn’t break during international shipping?

We use reinforced wooden crates and protective foam. Every door is wrapped in multiple layers of protection, and the glass panels are secured with corner guards. Our claim rate is less than 0.5% over the past five years, and we handle any damage claims promptly.

Q5: Can we put our own brand logo on the doors?

Yes. We offer OEM and Private Label services. We can customize the hardware branding, glass etching, packaging, and installation manuals to meet your branding requirements. This is a standard service, not an upsell.

—

Decision Guide: Choosing the Right Double Entry Door with Glass

Choose thermal-break aluminum if:

• Your project is in a climate with extreme temperature swings
• You need slim sightlines for maximum glass area
• You want minimal maintenance over the door’s lifespan
• Your building is in a coastal or high-wind zone

Choose solid wood if:

• Your project demands classic, premium aesthetics
• The building is in a temperate climate with controlled humidity
• You prioritize natural insulation over slim profiles
• The client is willing to perform regular maintenance

Choose double active panels if:

• The entrance experiences high pedestrian traffic
• You need both leaves to open for large equipment or furniture
• The building is commercial or institutional

Choose single active panels if:

• The entrance is primarily residential or boutique retail
• You want to minimize hardware wear and maintenance
• Wind loads are a concern in the region

—

A double entry door with glass is an investment in a building’s facade, energy performance, and security. When you source it directly from our factory, you gain control over every specification—from the frame profile to the glass coating to the hardware finish. We have the manufacturing capacity, the engineering experience, and the logistics network to deliver doors that meet your standards and your schedule.

If you have a project in mind, send us your drawings. Our team will respond with a detailed quotation within 48 hours.

Get a Free Quote

—

References

[1] EN 12207:2016. “Windows and doors – Air permeability – Classification.” European Committee for Standardization. https://www.en-standard.eu/bs-en-12207-2016-windows-and-doors-air-permeability-classification/

[2] EN 12211:2016. “Windows and doors – Resistance to wind load – Test method.” European Committee for Standardization. https://www.en-standard.eu/bs-en-12211-2016-windows-and-doors-resistance-to-wind-load-test-method/

[3] International Code Council. “IBC 2021: Section 2406 – Glazing.” https://codes.iccsafe.org/content/IBC2021P2/chapter-24-glass-and-glazing

[4] National Fenestration Rating Council. “NFRC 100: Procedure for Determining Fenestration Product U-factors.” https://www.nfrc.org/standards/

[5] American Architectural Manufacturers Association. “AAMA/WDMA/CSA 101/I.S.2/A440: Standard Specification for Windows and Doors.” https://aamanet.org/