Best Glass Blocks of 2026

Howard Chester Avatar
Howard Chester
Last Updated: Jan 8, 2026

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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

Quality Glass Block 8 x 8 x 4 Nubio Glass Block Cover #TOP 1
Quality Glass Block 8 x 8 x 4 Nubio Glass Block
ftb score rating icon 9.9
Seves Glass Block 1919/8 Clearview Craft Block Cover #TOP 2
Seves Glass Block 1919/8 Clearview Craft Block
ftb score rating icon 9.8
Innconee Clear Plastic Glass Setting Blocks 100pcs Cover #TOP 3
Innconee Clear Plastic Glass Setting Blocks 100pcs
ftb score rating icon 9.6

Top 10 Glass Blocks

#TOP 1

Quality Glass Block 8 x 8 x 4 Nubio Glass Block

1430100000
White
(8x8x4) Inches
Quality Glass Block 8 x 8 x 4 Nubio Glass Block Cover
Quality Glass Block 8 x 8 x 4 Nubio Glass Block

The Quality Glass Block 8 x 8 x 4 Nubio Glass Block by Seves features a wave in the glass that gives a relaxing look, along with a white edge coating that brightens the finished project. This block allows for substantial light transmission while maintaining moderate obscurity. It also comes with a 5-year limited warranty.

What We Like
Relaxing look with a wave in the glass
White edge coating brightens the finished project
Allows for substantial light transmission while maintaining moderate obscurity
#TOP 2

Seves Glass Block 1919/8 Clearview Craft Block

1550100504
Clear
7.5x7.5x3.13
Seves Glass Block 1919/8 Clearview Craft Block Cover
1919/8 Clearview Craft Block by Seves Glass Block | Glass Block with Hole & Cap | Hollow Clear Glass for DIY Displays, Lights, Photos, Rocks & Keepsakes | 7.5" Clear Glass Craft Block

The Seves Clearview Craft Block is designed to give you crystal-clear visibility, making it perfect to display lights, photos, keepsakes, and decorative items with maximum clarity. Its hollow interior allows you to personalize your project easily by adding fairy lights, water, flowers, coins, or other themed decorations. The block comes with a built-in hole and a secure cap, so your custom creations stay protected and look complete. Made from durable Seves glass, it ensures long-lasting use and includes a 45-minute fire rating, giving you peace of mind while crafting and decorating your space.

What We Like
Crystal-clear visibility
Hollow interior for customization
Includes hole and secure cap
Durable, fire-rated glass
#TOP 3

Innconee Clear Plastic Glass Setting Blocks 100pcs

DOY-Innconee-0789
clear
0.040" X1/4" X 2"
Innconee Clear Plastic Glass Setting Blocks 100pcs Cover
Innconee 100 Pcs 0.040" X1/4" x 2" Clear Setting Blocks for Glass Shower Glass Shims Bulk Clear Plastic Setting Blocks for Mirrors Bathroom Shower Mounting Room Kitchen Window Spacer Construction Shim

The Innconee Glass Setting Blocks come in a pack of 100, giving you plenty of spacers for your glass projects. Each block measures 0.040 inches thick, 1/4 inch wide, and 2 inches long, which is perfect for precise spacing needs. Made from durable, UV-resistant PVC, these clear blocks are designed to hold glass panels, mirrors, and shower components securely while resisting wear from sunlight. They fit well with common hardware like J-slots and H-bars, making installation straightforward and hassle-free. Plus, you can easily trim them to size or use multiple blocks together to get the exact fit you want, giving you great flexibility for your glass installation tasks.

What We Like
Large quantity (100 pieces)
Durable UV-resistant PVC
Compatible with J-slot and H-bar
Flexible sizing and use
#TOP 4

Generic 2" Blue Glass Bevels - 10 Pack

Generic
2X2BLUEBEV
Blue
Generic 2" Blue Glass Bevels - 10 Pack Cover
2" Blue Square Glass Bevel 10Pack

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 5

Yousoontic Acrylic Display Block

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

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 6

Mulia 8x8x3 Wave Hollow Glass Block

79002
Wave
Mulia 8x8x3 Wave Hollow Glass Block Cover
8 x 8 x 3 Wave Hollow Glass Block by Mulia

The Mulia Wave Glass Block offers a stylish way to add privacy to your space with its gently curved glass surface, which softly obscures visibility while still allowing light in. You’ll appreciate its 45-minute fire rating, providing an extra layer of safety for your home or office. Installation is flexible, as you can choose between a traditional mortar method or a quicker mortar-free approach, depending on your preference and skill level. At 3 inches thick, these blocks are perfect for window areas where you want to reduce noise, increase security, and maintain privacy without sacrificing natural light.

What We Like
Moderate privacy
45-minute fire rating
Flexible installation options
Noise reduction
Security enhancement
#TOP 7

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 8

EISCO Optical Glass Rectangular Refraction Block 3"x1.5"x0.5"

PH0566A
Colorless
EISCO Optical Glass Rectangular Refraction Block 3"x1.5"x0.5" Cover
EISCO Rectangular Refraction Block, 3" (75mm) x 2" (50mm) x 0.5" (12mm) - Optically Worked Glass - Slightly Beveled Edges - Excellent for Physics Experiments & Photography

The EISCO Glass Refraction Block is a high-quality rectangular glass block designed with precision-cut edges and smooth beveled sides, making it perfect for science experiments and photography. Its clear, bubble-free optical glass ensures accurate light refraction and reflection, which is especially useful if you’re conducting physics experiments or exploring light behavior. Measuring 3 inches long, 1.5 inches wide, and half an inch thick, it’s a convenient size for classroom use or creative photography projects. Whether you want to study light properties or create unique lighting effects, this block offers excellent clarity and reliable performance.

What We Like
Precision optical glass
Beveled, smooth edges
Ideal for physics experiments
Great for photography effects
Bubble-free clarity
#TOP 9

BARSKA Replacement Glass for AX11826 Key Box (3 Pieces)

AF12720
Clear
AX11826 Standard
BARSKA Replacement Glass for AX11826 Key Box (3 Pieces) Cover
BARSKA Glass Replacement Piece for Item AX11826 (3 Pieces), 4 3/4" x 2 1/4"

The BARSKA Replacement Glass is designed to easily swap out broken glass panels in your Barska Breakable Key Box, model AX11826. With this 3-piece set, you can quickly restore your key box’s protective window without hassle. The glass pieces fit perfectly into the channels inside the key box door, making installation simple and fast. Plus, if you ever need to break the glass to access your keys in an emergency, the replacement glass shatters safely without sharp edges, helping to prevent injuries. This makes the BARSKA Replacement Glass a practical and convenient choice for maintaining your key box’s security and safety.

What We Like
Easy installation
Safe breakage design
Perfect fit for AX11826
Three-piece set
#TOP 10

Yutianli Ice Crystal Textured Glass Blocks

transparent1
Transparent
7.8" x 3.9"
Yutianli Ice Crystal Textured Glass Blocks Cover
Yutianli Transparent Glass Blocks Wall Decor Ice Crystal Textured Solid Rectangular Glass Bricks Used as Partition Walls Accent Wall

The Yutianli Glass Block Decor features a unique 3D ice crystal texture that creates beautiful light and shadow effects, making your living space or business look more artistic and inviting. These glass blocks work well as room dividers, letting you define areas without blocking natural light or making your space feel closed off. Each block measures 7.8 by 3.9 inches and is just under 2 inches thick, perfect for creative wall designs or partitions. Plus, their smooth, dust-resistant surface means you can easily keep them clean with a simple wipe, and they can even handle semi-humid areas like bathrooms and balconies.

What We Like
3D ice crystal texture
Natural light-friendly partitions
Easy daily cleaning
Suitable for humid areas
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 3,834 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 $17.11.

The glass blocks are available for purchase. We have researched hundreds of brands and picked the top brands of glass blocks, including Quality Glass Block, Seves Glass Block, Innconee, Yousoontic, Mulia Tile. The seller of top 1 product has received honest feedback from 19 consumers with an average rating of 4.6.

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.