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Low-Iron Glass

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Low-Iron Glass

Experience clarity like never before with low-iron glass, also known as HD glass. Crafted with less amounts of iron in the mix, giving you a glass that's clearer and lets in more visible light. Beyond the striking transparency that sets it apart from traditional annealed glass, what makes this glass a standout choice is its ability to welcome natural light without the typical greenish tint. Explore the world of clarity and efficiency with this versatile and visually stunning glass.

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Customizable Options for Low-Iron Glass

It’s quite simple. Choose a shape, enter your measurements, select your favorite glass tint, thickness, strength, edge style, etc., and check out your custom-designed low-iron glass.


Choose from 6 different shapes for your project.


We custom fabricate to the exact measurements provided by you or your dxf file.


Choose to your preference. We offer glass thicknesses from 3/16”, 1/4", 3/8”, 1/2”, all the way to 3/4”.


Choose from 7 different glass tints/types to match your home decor.

Edge Style

Choose between a flat, beveled, or pencil polished edge on your glass purchase!

Corner Finish

You can choose eased, radius polished, or clip polished corners for safety or design purposes.

Center Hole

We offer center hole sizes from 1”, 2” to 4” for your glass project.

hd glass interior

What is low-iron glass?

Also referred to as extra-clear float glass or HD clear glass, is produced by reducing the iron content in the float glass manufacturing process. The reduced iron content eliminates the greenish-blue hue that becomes increasingly apparent as the thickness of the glass increases. This results in an ultra-transparent, colorless, and crystal-clear appearance, distinguishing low-iron glass from normal float glass. These qualities make it an ideal choice for applications where absolute clarity and purity of color are paramount, providing a visually pristine solution for various architectural and design purposes.

bathroom shower clear glass

What is low iron glass used for?

It is used for various purposes thanks to its exceptional clarity. It's a top choice in solar applications due to its ability to transmit a high amount of light. In the aquarium and display industries, it's valued for its crystal-clear properties. At home, it's commonly used for glass table tops, bespoke glass shelves, desktops, shower screens, bathroom doors, display cases, wall art, and kitchen splashbacks, bringing a touch of luxury to any space. It's not just for personal spaces – low iron glass is also a staple in major architectural projects like the Amazon Headquarters, National Aviary, and Calgary Central Library. Its clear aesthetic enhances the visual appeal of large-scale constructions, making it a crucial element in modern architecture. 

hd and clear glass

How can you tell if glass is low in iron?

To identify glass with low amounts of iron, look for a purer and more transparent appearance compared to normal glass. Extra-clear float glass stands out for its reduced greenish tint, presenting a clearer and more neutral color. This difference is particularly noticeable when examining the glass straight on, where it appears colorless. Another way to check is by paying attention to the edges – it typically shows much less green coloration at the edges in comparison to normal glass. By observing these characteristics, you can easily discern whether a piece of glass is low in iron.

low iron clear glass

Low Iron glass vs. clear glass

These types of glass vary significantly in color tint and light transmission, impacting their suitability for distinct applications. Regular glass comes with a noticeable blue-green tint, making it tricky for back-painting or coating. As the glass thickness increases, the green tint becomes more pronounced, posing additional challenges in attaining the desired aesthetics. Extra-clear float glass on the other hand provides a virtually colorless starting point, making it ideal for color-matching without the interference of the green tint seen in normal glass. 


When it comes to light transmission, this glass offers maximum brightness and clarity, particularly in applications where an unobstructed view is crucial. This superior clarity, coupled with minimal color tint, makes extra-clear float glass an excellent choice to use as architectural glass, interior glass, and in retail settings, where aesthetics and clarity are paramount. Dulles Glass provides various glass solutions, delivering unparalleled clarity for residential and commercial spaces.

hd clear glass

Why is low-iron glass more expensive?

This glass type may come with a steeper price due to the intricacies of its manufacturing process. Glass manufacturers use a meticulous procedure where most of the iron component is carefully removed from each glass sheet. This complex process ensures that the glass is made with a level of clarity and purity beyond the norm, providing a crystal-clear transparency that enhances its aesthetic appeal.


When considering this type of glass for a project, it's essential to weigh the added cost against the desired level of quality and aesthetic. The enhanced clarity and reduced impurities make this glass a premium choice, justifying its higher price for those who prioritize top-notch quality in their glass applications.

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Is low-iron glass worth the cost?

This glass type also referred to as “HD glass”, serves multiple purposes, known for its crystal-clear clarity. What sets it apart is its extremely low ferric oxide content, about 10x less than regular glass, ensuring a high level of clarity. It's commonly used in solar applications, particularly for solar panels, due to its excellent transmission of light. This makes it a popular choice for bathrooms and home furniture, including glass table tops, display cabinets, bespoke glass shelves, desktops, shower enclosures, wall art, and kitchen splashbacks. Even when it’s glass tempered, it doesn't compromise its clarity, making it a reliable option for robust and visually appealing furniture where see-through quality is essential.

Helpful Resources for Low-Iron Glass

Help & Installation Videos

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More Helpful Tips

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Dulles Glass is your online retailer for custom-cut glass, mirrors, and shower doors. We fabricate your glass your way, ship it to you free of charge nationwide, and provide our professional installation service in limited geographic areas.

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