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What is commercial steel door with sidelite and / or transom
A commercial steel door with sidelite and transom is a combination of a standard commercial steel door with fixed glass panels (or windows) beside and/or above the door.
A Sidelite is a narrow vertical fixed glass panel placed beside the door. It can be placed on the left side, right side, or both sides of the door.
A Transom is a glass panel placed above the door. it can be a fixed glass panel or an openable window for ventilation.
Steel doors with sidelites and transoms allow more natural light to enter the interior space, creating a brighter and more open environment, Openable transom glass panel (windows) is allow air-flow, keeping air fresh, while maintaining durability, safety. They are widely used in commercial buildings that require bright and fresh interior environments, such as classrooms, libraries, offices, corridors, public building entrances, schools, hospitals.
Application of commercial steel door with sidelite and / or transom
Bright environments are known to improve mood, enhance focus, and increase productivity. They help regulate sleep patterns, stimulate creativity, and reduce eye strain, creating a more energized, comfortable, and open atmosphere.Steel doors with sidelite and transom incorporate glass panels that allow natural light to permeate interior spaces, enhancing brightness. This makes them particularly well-suited for commercial and institutional buildings, including offices, schools, hospitals, and library, where a open and vibrant environment is essential.
Offices
Steel doors with sidelite and transom help offices feel brighter, more open, and more professional. Glass panels allow natural light to pass through reception areas, corridors, meeting rooms, and private offices. The steel frame provides strength and security, while the glass design improves visibility and creates a comfortable working environment. The sidelite can be combined with an openable louver to provide flexible control of light, airflow, and privacy. During meetings or staff rest time, the louver can be adjusted or closed to reduce light and create a more private, comfortable space.
Schools
In schools, steel doors with sidelite and transom create bright, active and welcoming learning spaces. and Openable transom glass panel (or window) allow air-flow and keep fresh air, reduce levels of carbon dioxide in classroom, as you know high level carbon dioxide lead people sleep and tired; They are suitable for classrooms, libraries, corridors, and administrative areas. while the steel structure provides durability, safety, and long-term performance for daily student use.
Hospitals
Hospitals require bright, clean, and easy-to-maintain environments. Steel doors with sidelite and transom allow more natural light into corridors, waiting areas, wards, and consultation rooms. The glass panels improve visibility and comfort, while the galvanized steel frame offers durability, security, and reliable performance in busy healthcare buildings.
Libraries
Libraries need quiet, bright, and comfortable spaces for reading, studying, and research. Steel doors with sidelite and transom allow natural light to flow into reading rooms, study areas, and offices. The glass design creates an open atmosphere, while the steel frame provides strength, durability, and clean architectural appearance.
Construction of commercial steel door with sidelite and / or transom
A commercial steel door with sidelite and transom is an integrated entrance system featuring glass panels beside the door, above the door, or both. The sidelite and transom are not separate part; they are designed as one complete door-frame assembly. The door and sidelite share the same mullion structure, while the top glass panel is built into the same transom frame, creating a strong, unified, and clean architectural appearance.
The whole system is made from galvanized steel, providing excellent strength, durability. Glass panels can be installed in the door leaf, sidelites, or transom its Available glass options include single glass, laminated safety glass, and double-insulated glass for improved safety, thermal performance, and acoustic insulation.
During production, the sidelite and transom glass panels are inserted into pre-cut openings in the steel frame and secured with a dedicated glass frame. This ensures glass stability, safety, and a neat finished appearance. Silicone sealant is then applied around the glass edges to create a weather-tight seal, helping prevent air and water leakage while improving long-term durability.
This construction method combines security, structural integrity and clean appearance. It is an ideal solution for commercial buildings, offices, schools, hospitals, corridors, libraries, and public entrances where durability, safety, brightness, and energy
efficiency are required.
Configuration options for commercial steel doors with sidelites and transoms.
Here is common configuration options for commercial steel doors with sidelites and transoms.
| Configuration | Description |
|---|---|
| Commercial Steel Door (Standard) | A single commercial steel door without sidelites or transom. Suitable for general commercial entrances and interior applications. |
| Commercial Steel Door with Single Sidelite | One fixed glass sidelite positioned on either the left or right side of the door, allowing additional natural light while maintaining security. |
| Commercial Steel Door with Double Sidelites | Fixed glass sidelites on both sides of the door, creating a wider and brighter entrance with improved visibility. |
| Commercial Steel Door with Transom | A fixed or operable glass transom installed above the door to increase daylight penetration and enhance the architectural appearance. |
| Commercial Steel Door with Sidelites and Transom | Glass sidelites and a transom combined into one integrated door-frame system, maximizing natural light and creating a spacious entrance. |
| Commercial Steel Door with Single Sidelite and Transom | One sidelite beside the door and one transom above, providing an asymmetrical design while increasing daylight. |
| Commercial Steel Door with Double Sidelites and Transom | Glass sidelites on both sides together with a transom above the door, offering the maximum amount of natural light and the most impressive entrance appearance. |
What is your MOQ?
We have no minimum order quantity and accept orders in any quantity.Whether you need a single door or material for an entire project, we offer affordable product price and shipping to your country
Can door size be customized?
Any size within the maximum size range can be customized,
- Maximum width of single door is 1250mm,
- Maximum width of double door is 2500mm,
- Maximum height is 2800mm.
Can door colors be customized?
Of course，We have a wide range of standard colors to choose from, and we can also produce according to the color card provided by the customer.
Can you provide design drawings for confirmation?
Of course, we can ! Our profesional designer can provide detailed design drawings to confirm the specifications and materials before production.
You can also download reference drawing on our website
Can you supply door hardware?
Of course, we can provide different materials, colors, styles, prices of hardware accessories for customers to choose, where you can one-stop shopping for doors and accessories! Most of our hardware is made in china (chinese brand), We can also supply hardware made by international Top brands (such as Häfele, Dorma), or Equivalent China-made hardware
