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7 Myths about Glass Block Showers

Written by Mike Foti on . Posted in Bathroom Remodeling, Glass Block

7 Myths about Glass block showers

For some reason the design, construction and trends surrounding glass block showers appears to be a mystery to many people. As a guy whose been in the supply and installation of glass block shower projects for close to 30 years this product is not nearly as hard to figure out as many people make it out to be. My goal with this article is to dispel the myths, mysteries and downright false statements circulating the Internet about glass block. I’ll not only take a look at 7 myths but provide you with winning strategies to create a contemporary glass block wall project which will be built to last and designed to inspire.

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Myth #1 – I need to hire a mason to install a glass block wall

This is certainly an “old-school” myth you can dispel right now. As you know masons are very expensive to hire …if you can find one to do your job (note: most masons hate laying glass block because their block by block method is tedious and the glass is harder to lay than a normal concrete block or brick). With today’s pre-fabrication technique glass block walls (even curved walls) can be made into easy to install sections. These pre-fab sections use vinyl spacers both vertically and horizontally in the wall with a system to anchor them to your stud walls. What’s cool is this system is easy enough for a DIY homeowner or a contractor unfamiliar with the product to install – saving you significant money on the project.

Installation of glass block shower sections with prefabricated panels

Installation of glass block shower sections with Protect All prefabricated panels

Myth #2 – Glass blocks are too thick and bulky

This used to be true – but not anymore. With the invention of a thinner 3” series of glass blocks it is now possible to do virtually any glass block wall with a sleek look. This new thin series is also available in shaped blocks to create a curved or 90 degree angle wall. With the pre-fab system mentioned above all grout joints are a small and consistent 1/8” between the blocks with a higher degree of structural stability than the old methods of a glass block installation with a mason, mortar and metal anchors.

Thinner glass blocks for more room in a shower

Thinner glass blocks for more room in a shower

Myth #3 – I need too much space to use glass blocks

Glass block showers have been designed to work – even in a walk in design – in a space as small as a the size of a bathtub (60”). I’ve found the key to designing a glass block wall is to evaluate both the width and the depth available. For a walk in shower I would recommend a 60” minimum width and for the depth 32” to 34” minimum. With the new thinner series blocks (discussed in myth #2) there is now more elbow room on the inside vs. the older thicker glass blocks.

Bath to shower conversion with a colored glass block shower wall

A glass block shower where a tub used to be

Myth #4 – Get a base, then design the glass block wall

This is probably the biggest myth and error when it comes to glass block shower wall design. While there are different sizes of glass blocks the reality is the glass blocks cannot be cut so to create a successful (and cost effective design) it’s best to “begin with the end in mind” (i.e. do the design for the shower starting with the glass blocks). There are both standard (made of acrylic) and custom sized bases (available in ready for tile and solid surface options) which can be manufactured to fit any shape of glass block wall. Doing the design up front will save cost – and aggravation – and ensures the glass block pre-made sections are a perfect fit with your shower base.

A stone solid surface base designed to fit a curved glass block wall

A stone solid surface base designed to fit a curved glass block wall

Myth #5 – Glass block is out of style

As with many building materials there are products which are trending up in style and materials which are trending down. Right now the “traditional wavy” pattern of glass block which was used a lot in the late 80’s and early 90’s is trending slightly down. With that being said there are glass blocks which can leverage the clean contemporary trends of today and take advantage of the modularity of glass blocks. There are now see- through clear units and ones with unique patterns (and even colors) which can add a unique style to a modern or traditional home.

A contemporary glass block shower design

A contemporary glass block shower design with a unique glass block pattern

Myth #6 – You can’t add a door to a glass block wall

With the proper planning it is possible to incorporate a door with a glass block wall by connecting the framing for a semi-frameless shower door through the joints in the glass units. It is even possible to install a completely frameless glass door with a specially designed framing system on top of the wall.

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A glass block shower with a frameless glass door

A glass block shower with a frameless glass door

Myth #7 – You need a post at the end of the glass block wall because it needs to be anchored on all sides

Contrary to what many contractors and consumers think you do not need to anchor the glass block on all sides. With systems like the Protect All prefabrication approach even a walk in glass block design only needs to be anchored along one wall surface. This not only creates a lot of design flexibility – but also a better looking wall because you can use a rounded finishing block for a more polished look.

An open glass block shower which is only anchored on one side

An open glass block shower which is only anchored on one side

Have you heard any of these 7 myths from a friend of contractor when you talked about a glass block shower wall? Comment or call us on the numbers below for more insights or a free design consultation.


For assistance and pricing from a glass block design specialist call Innovate Building Solutions on a nationwide basis (877-668-5888) or for a local installation project their divisions including Columbus Glass Block (614-252-5888), Cleveland Glass Block (216-531-6363), West Side Glass Block (216-398-1020) or Mid America Glass Block in Akron (330-633-2900).

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Mike Foti

President of Innovate Building Solutions a nationwide supplier and regional (Cleveland and Columbus) remodeling contractors. Some of our product lines include glass counters, floors, backsplashes, glass blocks and grout free shower and tub wall panels

Comments (2)

  • Mike Foti


    Barbara – I’m glad you like our web site. We can help you with a grout and curb free shower system. With the solid surface base you do not need to use glass block shower enclosures – that is just one option. I’ll follow up to see how else we can help.


  • Barbara Welsh


    Love your website. I want a grout free, curb free shower with rain glass walls or doors. Like your solid surface base but not completely sold on glass block walls. Any suggestions? Do you know a reliable contractor in S.C. near Beaufort, Bluffton or Hilton Head. Sav. GA would also be an option.


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