The door quality is excellent. The finish quality is excellent. The finish is nearly perfect. I very very highly recommend Alpada doors.
Love the new door adds a tonof character to the hallway it’s located
Steel Interior Window - Fixed Square
Estimated Delivery Date: 07/23/2026.
2-3 people needed to accept shipment.
For faster delivery, browse our in-stock options.
The Alpada fixed square interior steel window offers a perfect blend of industrial chic and contemporary design. Its square form provides a timeless aesthetic that complements various interior styles, from modern minimalist to urban loft.
The carbon steel frame, finished with a sleek black powder coating, ensures durability and resistance to corrosion. At 1.26 inches (32 mm) thick, the metal frame provides a substantial presence and structural integrity.
The window features clear, 0.16-inch (4 mm) thick glass, allowing ample light transmission while maintaining privacy between spaces. With 15 different glass separation designs available, including diverse horizontal bars and classic grids, you can customize the look to match your unique style preferences and interior decor.
Specifications & Materials
Below are the general specifications for this window model, including details like finish type and material. Customizable specifications, such as window style (if applicable), size, glass type, handle design, and opening options, can be selected and found during the customization process.
- Materials: Carbon steel frame with tempered glass panel.
- Steel Finish: Matte black powder coating.
- Steel Thickness: 1.26 inches (32 mm).
- Glass Thickness: 0.20 inches (5 mm).
- Frame Width or Thickness: 1.57 inches (40 mm).
Measurement & Installation
Our products come pre-hung in a steel frame, so the listed sizes reflect the actual dimensions of the door/window and frame. For rough openings, we recommend adding a 0.5-inch gap to the width and a 0.5-inch gap to the height to allow for proper adjustments during installation.
Installation is simple with our pre-hung steel doors. For those who prefer DIY, each door arrives with a tailored Installation Manual, and we also provide clear, step-by-step guides on our website to assist you.
If you need professional help, let us know when placing your order. Depending on your location and the availability of our installation team, we may be able to provide installation services.
Accessories include all necessary installation hardware and bolts.
Shipping & Return
We deliver to any residential or commercial address within the continental United States. Shipping costs will be calculated based on the order size and shipping address during checkout. For clients in Alaska and Hawaii, a custom delivery estimate will be provided, as the standard shipping price displayed in the cart does not apply to these locations.
To ensure a smooth and reliable shipping experience, we partner with trusted shipping companies. Once your order is shipped, you will receive a confirmation email with a tracking number and a link to track your package.
The shipping company will typically contact you to schedule a delivery appointment. Please note, the recipient must be present to receive the delivery. While the shipping company will provide a lift gate for unloading, additional assistance will be necessary to move the door to its final destination.
Custom orders are non-refundable.
Lead Time
Our standard lead time for custom orders is 12–16 weeks from order placement to shipping. Please note that exact dates cannot be guaranteed, as schedules may change during the project. We recommend scheduling installation or related work only after your order has arrived.
Warranty & Maintenance
Alpada provides a 1-year warranty for all our products, covering specific defects. Exceptions apply, including improper handling, installation, or normal wear and tear. Read more about our warranty.
To keep your steel and glass doors and windows in excellent condition, regularly clean the surfaces with a soft cloth and mild soap solution to remove dirt and debris. Avoid using abrasive materials or harsh chemicals, as these can damage the finish or seals. For the glass panel, use non-abrasive glass cleaners and dry with a microfiber cloth to maintain clarity and shine. Lubricate hinges and locks regularly, and check seals for wear to ensure longevity.
If you need replacement parts like handles or locks after the warranty, contact us for guidance or to purchase replacements.
Steel Interior Window - Fixed Square
Sale price$542.00
Regular price$677.50
Choose options
Steel Interior Window - Fixed Square
Sale price$542.00
Regular price$677.50
Estimated Delivery Date: 07/23/2026.
2-3 people needed to accept shipment.
For faster delivery, browse our in-stock options.
Frequently Asked Questions
What materials are used in your windows?
Our windows feature a carbon steel frame with tempered glass panels, ensuring durability and style. The steel is finished with a matte black powder coating for a sleek, modern look.
What are the specifications for your windows?
- Steel Thickness: 1.26 inches (32 mm)
- Glass Thickness: 0.20 inches (5 mm)
- Frame Width/Thickness: 1.57 inches (40 mm)
- Weight: Varies depending on size and configuration
What is tempered glass?
Tempered glass is heat-treated to be stronger and safer than regular glass. It's designed to shatter into small, less harmful pieces in case of breakage.
What is carbon steel?
Carbon steel is a durable, high-strength material that's resistant to wear and corrosion, making it ideal for long-lasting windows.
What types of glass do you offer?
- Clear Glass: Maximizes light and openness for modern spaces.
- Frosted Glass: Enhances privacy with a soft, diffused glow.
- Gray Glass: Offers a sleek, tinted look for added elegance.
- Ribbed Horizontal Glass: Provides texture and privacy with a linear design.
- Ribbed Vertical Glass: Adds dimension with striking vertical patterns.
Note: Glass type does not affect the price.
What are the color options for steel?
- Interior Windows: Matte Black (RAL 7021), Grey Blue (RAL 5008), Sepia Brown (RAL 8014), Olive Gray (RAL 7002), Pebble Gray (RAL 7032), Window Gray (RAL 7040), Pure White (RAL 9010).
- Exterior Windows: Any color from the RAL palette.
How do I choose the right window size?
Our windows come with a steel frame. Add a 0.5-inch gap to both the width and height for proper adjustments during installation. For example, a 36" x 48" window requires a rough opening of 36.5" x 48.5".
How do I measure my window opening?
Tools Needed: Tape measure, level, and a notebook.
Steps:
- Measure the width at the top, middle, and bottom, and record the smallest measurement.
- Measure the height on the left and right sides, and record the smallest measurement.
- Use a level to check alignment and note any adjustments needed.
How does installation work?
Our windows come with a tailored Installation Manual. For professional help, let us know when placing your order. Installation services may be available depending on your location.
What is your lead time?
- Custom Orders: 12–16 weeks. Expedited lead time is not available.
- In-Stock Orders: Shipped within 1–3 business days.
How do you handle packaging and shipping?
Orders are packed in secure wooden cases to prevent damage. We deliver within the continental U.S., with shipping costs calculated during checkout. For Alaska and Hawaii, custom delivery estimates are provided.
Do I need a window frame?
A window frame is optional. You can install the window in an existing frame or add one. For guidance, refer to our Measurement Guide.
What are the hardware options?
We offer various hardware options including handles and locking mechanisms at no extra cost. For custom hardware installations, contact us with details to confirm compatibility.
What is your warranty policy?
We provide a 1-year warranty covering specific defects. Exceptions include improper handling, installation, and normal wear and tear. Read more in our Warranty Policy.
How should I maintain my windows?
- Clean surfaces with a soft cloth and mild soap solution.
- Avoid abrasive materials and harsh chemicals.
- Use non-abrasive glass cleaners for glass panels.
- Lubricate hinges and locks regularly, and check seals for wear.
What is your return policy?
- Custom orders are non-refundable.
- Standard orders can be returned within 30 days. Delivery fees are non-refundable, and restocking fees may apply for damages.
Refer to our Return Policy for details.
Dont know which material you what - scroll down
FROSTED GLASS
Frosted Glass is an excellent option for those seeking privacy without sacrificing style. Its semi-transparent surface diffuses light, offering a soft, muted glow while obscuring visibility, making it ideal for bathrooms, bedrooms, and office spaces. The elegant, frosted finish provides a sophisticated touch that enhances the aesthetic appeal of any door.
Features:
- Privacy: Ensures discretion by blurring the view, maintaining privacy while allowing light to pass through.
- Elegant Appearance: Adds a refined, contemporary look to any door.
- Light Diffusion: Softens and diffuses light for a pleasant, ambient atmosphere.
- Versatile Application: Suitable for both residential and commercial settings.
- Durability: Crafted from high-quality materials to ensure lasting beauty and strength.
Whether used in interior doors to create private spaces or in exterior doors to provide a stylish entrance, Frosted Glass offers a perfect blend of functionality and elegance.
CLEAR GLASS
Clear Glass is the perfect choice for those who desire a clean, modern look for their doors. Its transparent nature allows maximum light to flow through, creating a bright and open atmosphere in any room. This versatile glass can seamlessly blend with various styles, from contemporary to classic, ensuring your space feels spacious and inviting.
Features:
- High Transparency: Offers unobstructed views and abundant natural light.
- Sleek and Modern: Adds a touch of elegance and sophistication to any door.
- Versatile Design: Complements a wide range of interior and exterior styles.
- Durability: Made from high-quality materials to ensure long-lasting clarity and strength.
Whether used in interior doors to connect living spaces or in exterior doors to welcome guests with a clear view of the outdoors, Clear Glass is an excellent choice for enhancing the beauty and functionality of your home.
GRAY GLASS
Gray Glass offers a sleek and sophisticated look for those looking to add a touch of modern elegance to their doors. With its subtle tint, this glass type not only provides a distinctive aesthetic but also reduces glare and enhances privacy. Ideal for both interior and exterior applications, Gray Glass can elevate the style of any space while maintaining a contemporary feel.
Features:
- Modern Aesthetic: Adds a chic, stylish touch with its refined gray tint.
- Enhanced Privacy: Offers more privacy than clear glass while still allowing light to filter through.
- Glare Reduction: Minimizes glare from sunlight and artificial lighting.
- Versatile Design: Perfect for various architectural styles and interior designs.
- Durability: Constructed from high-quality materials to ensure longevity and resilience.
Whether used in office partitions, entry doors, or room dividers, Gray Glass brings a modern sophistication that can transform the look and feel of any environment.
RIBBED HORIZONTAL
Ribbed Horizontal Glass is the perfect choice for those looking to add texture and depth to their doors. Featuring horizontal ribbing, this glass design creates an eye-catching pattern that diffuses light while maintaining a level of privacy. Its unique appearance and functional design make it ideal for both contemporary and traditional settings.
Features:
- Textured Design: Horizontal ribbing adds a dynamic, stylish element to any door.
- Privacy: Provides a degree of obscurity without completely blocking light, ensuring a balance of privacy and illumination.
- Light Diffusion: Softly scatters light to create a warm, inviting atmosphere.
- Versatile Style: Complements a variety of interior and exterior designs, from modern to classic.
- Durability: Made from high-quality materials for lasting beauty and strength.
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Ribbed Vertical Glass is an excellent option for those looking to incorporate a stylish and distinctive element into their doors. Featuring vertical ribbing, this glass type adds a striking linear texture that enhances visual interest while providing a subtle level of privacy. Its elegant and functional design makes it suitable for both modern and traditional interiors.
Features:
- Textured Design: Vertical ribbing introduces a sophisticated, linear pattern that elevates any door's aesthetic.
- Privacy: Offers partial obscurity, balancing privacy with the flow of natural light.
- Light Diffusion: Gently scatters light, creating a soft and inviting ambiance.
- Versatile Style: Complements a wide range of design styles, from contemporary to classic.
- Durability: Crafted from high-quality materials to ensure long-lasting beauty and strength.