Best Glass Blocks of 2025

Howard Chester Avatar
Howard Chester
Last Updated: Jan 2, 2025

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Glass blocks are a versatile and stylish building material that have gained popularity in recent years. These blocks, made of clear or colored glass, are a great way to add natural light to a space while still maintaining privacy. They come in a variety of sizes and patterns to suit any design aesthetic, and can be used for both interior and exterior applications. Glass blocks are also energy efficient, providing insulation and helping to reduce heating and cooling costs. Whether used for walls, partitions, or even flooring, glass blocks offer a unique and modern look that is sure to impress.

At a Glance: Our Top Picks

ExcelMark Blank Clear Acrylic Block Cover #TOP 1
ExcelMark Blank Clear Acrylic Block
ftb score rating icon 9.9
United Scientific RCB115-G Glass Block Cover #TOP 2
United Scientific RCB115-G Glass Block
ftb score rating icon 9.8
Franklowe Clear Plastic Setting Blocks Cover #TOP 3
Franklowe Clear Plastic Setting Blocks
ftb score rating icon 9.6

Top 10 Glass Blocks

#TOP 1

ExcelMark Blank Clear Acrylic Block

BlankAcrylic
ExcelMark Blank Clear Acrylic Block Cover
ExcelMark Blank Clear Acrylic Block (2.5 x 8, inches)

The ExcelMark Acrylic Block is a high-quality crystal clear acrylic block that can be customized with your own text or logo. With dimensions ranging from 2.5" x 8" to 7" x 9", and a thickness of 1.125", this block is sturdy and durable. Each block is individually boxed to prevent scratches during shipping, ensuring that your purchase arrives in perfect condition. Whether you're creating nameplates or personalized gifts, this acrylic block is the perfect choice. Its blank surface allows for endless customization possibilities, making it a stylish and personal gift option. With the ExcelMark Acrylic Block, you can create beautiful and unique items that will impress and delight.

What We Like
Customizable
Durable
Individually boxed
#TOP 2

United Scientific RCB115-G Glass Block

United Scientific
RCB115-G
Clear
United Scientific RCB115-G Glass Block Cover
United Scientific Supplies RCB115-G Clear Glass Rectangular Block, 115mm L x 65mm W x 20mm Thick

The United Scientific Glass Block is a polished rectangular glass piece measuring 115mm in length, 65mm in width, and 20mm in thickness. Its clear construction provides excellent optical clarity, making it ideal for science experiments that demonstrate the principles of refraction. This glass block is designed to enhance your understanding of light behavior, allowing you to conduct experiments with precision. Its rectangular shape is not only practical but also convenient for various educational setups, ensuring that you can easily incorporate it into your scientific activities.

What We Like
High optical clarity
Ideal for refraction experiments
Convenient rectangular shape
Durable polished glass
#TOP 3

Franklowe Clear Plastic Setting Blocks

FRANKLOWE EXPLORE PURSUE CREATE
Clear
1/8" x 1/4" x 2"
Franklowe Clear Plastic Setting Blocks Cover
Franklowe Clear Plastic Setting Blocks for Glass and Mirrors – Pack of 100 PC (1/8" x 1/4" x 2")

Franklowe Clear Blocks offer a practical solution for installing mirrors and glass. Their barely visible design makes them ideal for frameless showers and helps achieve a clean look in J-Channels or H-Bars. Made from flexible, UV-resistant plastic, these blocks ensure durability and performance both during and after installation. You’ll find that they are especially useful for leveling and setting mirrors where a clear option is preferred, providing both functionality and aesthetic appeal. With fast turnaround times, Franklowe is ready to meet your needs, large or small.

What We Like
Durable UV-resistant material
Barely visible design
Flexible for easy installation
Fast order turnaround
#TOP 4

Generic 2"x2" Beveled Glass Pack

Generic
2X2BEV
clear
Generic 2"x2" Beveled Glass Pack Cover
2" x 2" Beveled Glass Square - 10 Pieces

The Generic Beveled Glass Set includes ten 2"x2" clear glass pieces that beautifully refract light, creating stunning rainbows. You can use these versatile bevels in various applications, such as enhancing windows, doors, or crafting unique suncatchers. Their clear design allows for maximum light penetration, making any space feel brighter and more inviting. Whether you're a DIY enthusiast or simply want to add a decorative touch to your home, these glass bevels can transform your projects and fill your environment with vibrant colors.

What We Like
Colorful light refraction
Versatile decorative use
Enhances home ambiance
Easy to incorporate in projects
#TOP 5

Generic 2" Blue Glass Bevels - 10 Pack

Generic
2X2BLUEBEV
blue
Generic 2" Blue Glass Bevels - 10 Pack Cover
2" Blue Beveled Glass Squares - 10 Pieces

The Generic Blue Glass Bevels come in a pack of ten, each measuring 2"x 2". These transparent glass pieces are designed to refract light beautifully, creating a stunning display of rainbow colors in your space. You can use them to enhance windows, doors, or even suncatchers, adding a touch of elegance and charm. Their versatility allows you to incorporate them into various decorative projects, making it easy for you to elevate your home decor. With these glass bevels, you can enjoy a vibrant and colorful atmosphere wherever they are placed.

What We Like
Creates beautiful light reflections
Versatile for home decor
Enhances windows and doors
Packs of ten for convenience
#TOP 6

Innconee Clear Plastic Setting Blocks

Innconee
DOY0080
clear
Innconee Clear Plastic Setting Blocks Cover
Innconee 200 Pcs 0.040" X1/4" x 2" Clear Blocks Setting Glass Blocks Clear Plastic Setting Blocks for Glass Mirrors Bathroom Shower Bulk Mounting Room Kitchen Window Spacer Set Construction Shim

The Innconee Setting Blocks come with 200 pieces, ensuring you have plenty for your projects. Each block is made from durable PVC and is designed to withstand UV exposure, making them perfect for installing glass shower rooms and mirrors. Their almost invisible design allows for easy installation, especially with J-slot and H-bar setups. You can also adjust the length of the blocks to fit your specific needs, giving you flexibility in various applications. These blocks are ideal for use in bathrooms, kitchens, and more, providing practical support wherever you need it.

What We Like
Large quantity included
Durable and UV resistant
Compatible with various setups
Customizable length options
#TOP 7

Yousoontic Acrylic Display Blocks

Yousoontic
TAT-Yousoontic-125
clear
Yousoontic Acrylic Display Blocks Cover
Yousoontic 2 Pcs 2.5 x 8 x 1.125 Inch clear acrylic blocks for display Blank name plate Block Cube Display Stand for Wedding Props Photography Scrapbooking Crafts

The Yousoontic Acrylic Blocks come in a set of two, giving you flexibility for various display arrangements. Each block measures 2.5 x 8 inches with a thickness of 1.125 inches, making them perfect for different applications, from weddings to art projects. Crafted from durable acrylic, these blocks are designed to last, resisting scratches and maintaining their elegant appearance over time. They are also coated to prevent scratches, ensuring a glossy finish that enhances your displays. With their versatility, you can use them for home decor, office presentations, or creative crafts.

What We Like
Durable acrylic material
Scratch-resistant coating
Flexible arrangement options
Ideal for various applications
#TOP 8

Custom Insulated Glass by Fab Glass

C-INSEG-REC5TF
transparent
Custom Insulated Glass by Fab Glass Cover
Custom Cut to Size Insulated Glass Low E (Pilkington) - Dual Pane Heat Insulating 3/16" Thick Tempered Glass for Windows by Fab Glass and Mirror

The Fab Glass Insulated Glass is designed to enhance your home’s energy efficiency and safety. With its double-pane structure, this glass features an insulating layer of inert gas that minimizes heat transfer, helping you maintain a comfortable indoor temperature. The use of low emissivity (Low E) glass ensures greater strength and safety, making it ideal for various applications. Additionally, you can customize the size and thickness to fit your specific needs, providing you with flexibility and convenience. Choose from different window frame styles to complete your setup.

What We Like
Energy efficiency
Customizable sizes
Enhanced safety
Various frame styles
#TOP 9

Yousoontic Acrylic Display Block

Yousoontic
TAT-Yousoontic-293
clear
Yousoontic Acrylic Display Block Cover
Yousoontic 2 Pcs 3 x 9 x 1.125 Inch Blank Clear Acrylic Block Acrylic Display Block Acrylic Name Plate Block Clear Acrylic Cube Display Block Stand for Wedding Props Photography Scrapbooking Crafts

The Yousoontic Acrylic Block comes as a set of two, providing you with flexibility for your display needs. Measuring 3 x 9 inches with a thickness of 1.125 inches, these blocks are perfectly sized for a variety of applications, making them easy to store and transport. Made from durable acrylic, they resist scratches and maintain their elegant appearance over time. The individual coating not only enhances their glossy finish but also keeps them clear and shiny, ensuring they look great even after extensive use. These versatile blocks can be customized for any occasion, from weddings to office presentations.

What We Like
Customizable for various projects
Durable and long-lasting material
Scratch-resistant coating
Ideal size for multiple uses
#TOP 10

SKISUNO Rectangular Glass Block

SKISUNO
DVE50640186JG
As Shown
6.00X3.00X1.20CM
SKISUNO Rectangular Glass Block Cover
SKISUNO 2pcs Rectangular Glass Brick Experiments Block Refraction Blocks Glass Blocks for Crafts Light Refraction Block Rectangular Glass Block Refraction Experiments Glass Block

The SKISUNO Glass Block is designed for refraction experiments, making it an excellent tool for educators and students alike. Its rectangular shape allows for easy handling and placement, enhancing your ability to perform various experiments. This glass block minimizes reflection, ensuring that you achieve accurate and precise results when exploring optical principles. Crafted from sturdy glass, it is comfortable to touch and built for long-lasting use, providing you with a reliable instrument for classroom demonstrations. With this block, you can confidently conduct your experiments and observations with enhanced accuracy.

What We Like
Easy handling and placement
Minimizes reflection for accuracy
Sturdy and durable material
Ideal for classroom use
Buying Guide Image

Decide Which Glass Blocks Are Best for You

Introduction

Glass blocks are a beautiful and functional addition to any home. They can be used for a variety of purposes, such as adding natural light to a space, creating a partition or decorative element, or providing privacy without sacrificing light. Choosing the right glass blocks for your project can be a daunting task, but with a little knowledge and careful consideration, you can easily find the perfect blocks for your needs.

Consider Your Purpose

Before choosing your glass blocks, it's important to consider what you want to use them for. Are you looking to add light to a dark space? Create a unique partition or accent wall? Provide privacy without blocking out light? Knowing your purpose will help you choose the right size, shape, and style of glass blocks.

Think About Size and Shape

Glass blocks come in a variety of sizes and shapes, from small decorative blocks to large, structural blocks. Consider the size and shape of the space where you will be using the blocks, as well as the aesthetic you want to achieve. For a large, open space, you may want to use larger, rectangular blocks to create a bold statement. For a smaller space or for added interest, you can use a mix of shapes and sizes.

Choose Your Style

Glass blocks are available in a range of styles, from clear to frosted to colored. Clear glass blocks allow the most light to pass through, while frosted blocks provide privacy without sacrificing light. Colored glass blocks can add a unique touch to your project, but keep in mind that they will block more light than clear or frosted blocks. Consider the overall aesthetic of your space and choose a style that complements it.

Look for Quality

When choosing glass blocks, it's important to look for high-quality options. Poor-quality blocks can be thinner, weaker, and less durable than their higher-quality counterparts. Look for blocks that are made from thick, sturdy glass and have smooth, even edges. It's also a good idea to purchase your blocks from a reputable supplier or manufacturer to ensure that you are getting a high-quality product.

Conclusion

Choosing the right glass blocks for your project can be a daunting task, but with a little knowledge and careful consideration, you can easily find the perfect blocks for your needs. Consider your purpose, size and shape, style, and quality, and you will be well on your way to finding the perfect glass blocks for your home.

Frequently Asked Questions (FAQs)

1. What are the disadvantages of glass blocks?

While glass blocks offer benefits like insulation and durability, they can also have disadvantages. Glass blocks can crack or get damaged, which can make the entire window or wall unstable. Repairing or replacing glass blocks can be expensive.

2. Why is glass block so expensive?

Glass blocks are relatively more expensive compared to regular windows due to their added benefits like insulation and durability. The cost of a single glass block can range from around $15 to $50, depending on factors like specialty blocks with colored or frosted designs.

3. Do they still make glass blocks?

Yes, glass blocks are still available. There are clear glass blocks on the market that offer transparency similar to window glass. Glass blocks have insulating properties due to their hollow structure, similar to insulated glass units.

4. Is glass block easy to install?

Installing glass blocks is relatively easy and straightforward. It is considered easier than installing traditional windows. With a few tools and a couple of hours, you can complete the installation process.

5. Do you need a frame for glass block?

To ensure a weatherproof and attractive glass block window, it is recommended to encase it in a custom-built wooden frame. The frame should be slightly larger than the glass block panel to accommodate the installation and provide a secure fit.

6. Do glass blocks leak?

Proper installation and sealing are crucial to prevent water leakage with glass blocks. If not laid and sealed correctly, water can infiltrate and cause damage to the windows and the surrounding structure. Pre-laid sections of glass blocks are available but require assistance due to their weight.

7. How long does glass block last?

Glass block windows can last around 15-30 years, depending on the manufacturer. However, the seal around the window may deteriorate before that timeframe and require maintenance or touch-ups.

8. Is glass block cheaper than windows?

Glass block windows are generally less expensive than standard thermal-replacement windows. They are also relatively easy to install, and you can order pre-assembled glass block panels that fit your window opening size.

Editor's Notes

During our glass block research, we found 24 glass block products and shortlisted 10 quality products. We collected and analyzed 2,752 customer reviews through our big data system to write the glass blocks list. We found that most customers choose glass blocks with an average price of $15.06.

The glass blocks are available for purchase. We have researched hundreds of brands and picked the top brands of glass blocks, including ExcelMark, United Scientific, FRANKLOWE EXPLORE PURSUE CREATE, Innconee, Yousoontic. The seller of top 1 product has received honest feedback from 3,312 consumers with an average rating of 4.9.

Written by
Howard Chester Avatar

Howard Chester is an architect from New York who holds a master's degree in architectural design, his passions for interior design and home improvement contribute to his extensive knowledge of all things furniture and home goods. Howard Chester Specializes in various architectural and interior design projects. He often publishes articles related to decoration on key websites and interior design magazines.