6mm vs 8mm vs 10mm Shower Glass – What’s the Difference?

When you start comparing shower enclosures, one specification appears again and again:

Glass thickness.

6mm. 8mm. 10mm.

At first glance, it’s tempting to assume the thickest glass must automatically be the best.

But that isn’t quite how it works.

Glass thickness affects the weight, feel, support requirements, framing and overall design of a shower enclosure, but thicker glass doesn’t necessarily mean a particular enclosure will be better for your bathroom.

In this Allbits Shower Enclosure Guide, we’ll explain the difference between 6mm, 8mm and 10mm shower glass, where each thickness is commonly used and what you should actually look for when comparing shower enclosures.

If you're still choosing between enclosure styles, start with our Complete Shower Enclosure Buying Guide.

Complete Shower Enclosure Guide

What Type of Glass Is Used in Shower Enclosures?

Quality shower enclosures are manufactured using toughened safety glass rather than ordinary household glass.

Toughened glass is heat-treated during manufacture to increase its strength and alter the way it behaves if breakage occurs.

When buying an enclosure, glass thickness is therefore only one part of the specification.

You should also consider:

Overall enclosure design
Supporting profiles
Hinges or rollers
Bracing
Door mechanism
Glass treatment
Manufacturer specification
Installation requirements

A properly engineered 6mm enclosure can be a far better choice than simply selecting another design because it happens to use thicker glass.

What Does 6mm Shower Glass Mean?

Quite literally, the glass is approximately 6 millimetres thick.

6mm toughened safety glass is widely used in modern shower enclosures because it offers a very useful balance between:

Strength
Weight
Practicality
Cost
Ease of operation

It works particularly well with framed and semi-framed enclosures where the profiles and structure help support the glass.

Allbits' current Genesis 6mm Quadrant Shower Enclosure, for example, combines 6mm Clearview Easy Clean toughened safety glass with polished silver profiles and sliding doors with quick-release rollers.

Is 6mm Shower Glass Good?

Yes.

A well-designed shower enclosure using 6mm toughened safety glass can be an excellent choice for everyday bathroom use.

It's particularly common in:

Sliding enclosures
Quadrant enclosures
Pivot doors
Compact shower enclosures
En-suite bathrooms
Family bathrooms

The relatively manageable weight of 6mm glass also makes it well suited to moving door panels and roller systems.

You can see 6mm examples in the live Allbits Pivot Shower Doors collection, including Genesis and Classic models.

What Is 8mm Shower Glass?

8mm glass is 2mm thicker than 6mm, but in terms of weight and feel the difference can be quite noticeable.

It is often used in more premium shower enclosure ranges where a heavier, more substantial feel is desirable.

Current Allbits Premier enclosures use 8mm toughened safety glass across several designs.

For example, the Premier 8mm Roller Quadrant Shower Enclosure uses 8mm double-sided Clearview Easy Clean toughened safety glass, while the Premier 8mm Hinged Quadrant combines 8mm glass with solid hardware and a 2000mm enclosure height.

Is 8mm Shower Glass Better Than 6mm?

Not automatically.

8mm glass generally feels heavier and more substantial, which many people associate with a premium enclosure.

But the entire enclosure needs to be designed to support that additional weight.

A good 8mm enclosure therefore usually includes appropriately engineered:

Hinges
Rollers
Wall profiles
Handles
Support systems

The advantage isn't simply that the glass is harder to break.

It's often more about the solid, premium feel of the complete enclosure.

What Is 10mm Shower Glass?

10mm toughened safety glass is typically associated with more substantial, minimalist or premium shower installations.

Because the glass is thicker and heavier, 10mm panels can often feel extremely solid.

It's particularly suited to designs such as:

Fixed shower screens
Walk-in shower panels
Minimalist frameless installations
Large fixed glass panels
Premium wet-room screens

However, that extra thickness also means extra weight.

The wall fixings, supports, floor or tray arrangement and installation must all be appropriate for the particular product.

Is 10mm Shower Glass Better Than 8mm?

Again, not necessarily.

For a large fixed walk-in panel, 10mm glass may make perfect sense.

For a sliding shower door, extra glass weight could require a much heavier roller mechanism and structure.

That's why different enclosure designs use different glass thicknesses.

Rather than asking:

"What's the thickest glass I can buy?"

a better question is:

"What glass thickness has this enclosure been designed to use?"

That will tell you far more about whether it's suitable.

6mm vs 8mm vs 10mm Shower Glass – Quick Comparison

Feature	6mm	8mm	10mm
Overall feel	Solid	More substantial	Very substantial
Glass weight	Lower	Higher	Highest
Common in moving doors	Very common	Common	Less common
Common in fixed panels	Yes	Very common	Particularly suitable
Typical price level	Lower	Mid/Premium	Premium
Support requirements	Moderate	Greater	Greatest
Good for compact enclosures	Excellent	Excellent	Depends on design
Premium feel	Good	Very good	Excellent

The important phrase there is:

Depends on design.

Glass thickness should never be considered in isolation.

Which Glass Thickness Is Best for a Sliding Shower Door?

For sliding shower doors, 6mm and 8mm glass are both widely used.

Sliding doors need to move smoothly along rollers or tracks, so weight matters.

6mm glass keeps the moving panels comparatively manageable while still offering strong everyday performance.

8mm sliding doors can provide a heavier, more premium feel but require appropriately designed roller systems.

Allbits currently offers both approaches.

The Genesis 6mm Quadrant uses 6mm glass with quick-release rollers, while the Premier Roller 8mm Sliding Shower Door uses 8mm toughened safety glass with a smooth roller mechanism.

That’s a perfect example of why one thickness isn’t universally better than another.

Which Glass Thickness Is Best for a Hinged Shower Door?

Hinged doors can work particularly well with thicker glass because the door is supported by substantial hinges rather than travelling along a sliding track.

8mm is therefore a very popular premium specification.

The live Premier 8mm Hinged Shower Door with Inline Panel uses 8mm double-sided Clearview Easy Clean toughened safety glass alongside solid metal hinges and a solid metal handle.

Thicker glass can provide a reassuring, substantial movement when the door opens and closes — provided the hardware has been designed for it.

Which Glass Thickness Is Best for a Walk-In Shower?

Walk-in showers often use larger fixed glass panels, which changes the equation.

Because the glass isn't constantly moving, thicker glass can be especially useful in creating a solid, minimalist installation.

8mm is extremely common.

10mm may also be used on premium fixed panels where the manufacturer has designed the supports accordingly.

But again, don't select a panel purely because of thickness.

Check:

Panel width
Panel height
Stabilising bars
Wall channels
Floor/tray fixing
Manufacturer installation requirements

A very large piece of glass is heavy — remarkably heavy.

This isn't the time to discover that gravity has strong opinions.

😂

Does Thicker Shower Glass Feel More Luxurious?

Generally, yes.

That extra weight can make thicker glass feel more substantial.

An 8mm or 10mm panel often has less of the lightweight feel that some thinner moving panels can have.

However, luxury comes from the whole enclosure, not simply glass thickness.

A beautifully engineered 6mm enclosure with smooth rollers, strong profiles and excellent finishing can feel far better than a poorly designed thicker-glass product.

Also consider:

Quality of handles
Metalwork
Roller action
Hinges
Glass treatment
Frame finish
Enclosure height
General construction

Does Thicker Glass Mean a Stronger Shower Enclosure?

Glass thickness contributes to the physical characteristics of the panel, but the strength and performance of the complete enclosure depend on far more than glass alone.

The glass must work together with:

Profiles
Bracing
Hinges
Rollers
Fixings
Wall channels

The manufacturer should design all of these components as one system.

Never try to substitute a different glass thickness or modify an enclosure outside its installation instructions.

Does Thicker Shower Glass Reduce Flex?

Generally, thicker glass can feel more rigid and substantial than thinner glass of a similar size.

That can be especially noticeable on larger fixed panels.

But some controlled movement can be completely normal depending on the enclosure design.

Always judge the product according to the manufacturer's specification rather than expecting every glass panel to feel identical.

Which Is Heavier – 6mm, 8mm or 10mm?

Unsurprisingly:

10mm is heaviest.

Then 8mm.

Then 6mm.

And the difference becomes increasingly significant as the size of the panel increases.

This matters during both installation and everyday use.

Large glass panels may require more than one person to safely handle and position them.

If you're unsure, use an experienced bathroom installer.

No shower enclosure is worth discovering how good your reflexes are.

Does Glass Thickness Affect the Price?

Often, yes.

Thicker glass generally requires:

More material
Stronger supporting components
More substantial hinges or rollers
More demanding handling and manufacturing

As a result, 8mm and 10mm products often sit towards the premium end of the market.

But don't compare products purely on price per millimetre of glass.

You should compare complete enclosure specifications.

What Is Easy-Clean Shower Glass?

Many modern enclosures incorporate a protective glass treatment designed to reduce the build-up of water marks, limescale and soap residue.

For example, current Genesis 6mm and Premier 8mm products at Allbits use Clearview Easy Clean treatments.

An easy-clean treatment can make routine maintenance simpler, although it doesn't remove the need for normal cleaning.

A quick shower squeegee after use remains one of the easiest ways to keep the glass looking good.

Is 8mm Glass Easier to Clean Than 6mm?

Not simply because it's thicker.

Cleaning depends much more on:

Protective glass coating
Water hardness
Enclosure design
Profiles and tracks
Regular maintenance

A 6mm easy-clean enclosure may be far easier to maintain than an untreated thicker panel.

Our Guide: How to Clean Shower Glass and Prevent Limescale covers this properly.

Is 6mm Glass Suitable for a Family Bathroom?

Absolutely, provided the enclosure is designed and manufactured correctly.

6mm toughened safety glass is used in many everyday shower enclosure designs.

Its balance of strength and manageable weight can make it particularly practical for family bathrooms where doors may be opened and closed frequently.

As always, check the specific product information.

Should I Pay Extra for 8mm Glass?

It depends on what you're trying to achieve.

8mm may be worth considering if you:

Prefer a heavier, premium feel
Want a higher-specification enclosure
Are choosing larger glass panels
Like more substantial hardware
Want a premium hinged or roller design

But if a good-quality 6mm enclosure suits your bathroom, there is no reason to reject it simply because another model uses thicker glass.

When Does 10mm Glass Make Sense?

10mm tends to make most sense where large fixed panels and a premium minimalist appearance are the priority.

Examples include:

Walk-in showers
Wet-room screens
Large fixed panels
Frameless or minimally framed designs

It's less about having a number that's bigger than 8mm and more about using the right material for the right engineering job.

Shower Glass Thickness Checklist

Before choosing your enclosure, check:

And remember:

Don't buy an enclosure based on the glass thickness alone.

That would be a little like buying a car based entirely on the thickness of the windscreen.

😂

Frequently Asked Questions

Is 6mm shower glass thick enough?

Yes. 6mm toughened safety glass is widely used in properly designed shower enclosures and can provide excellent everyday performance.

Browse Allbits Pivot Shower Doors

Is 8mm shower glass better than 6mm?

8mm glass generally feels heavier and more substantial, but it isn't automatically better. The overall enclosure design, hardware, glass treatment and intended use are equally important.

Is 10mm shower glass worth it?

It can be particularly suitable for large fixed shower screens and premium walk-in designs. Whether it's worth the additional cost depends on the type of enclosure and the look and feel you're trying to achieve.

Is thicker shower glass safer?

Shower glass safety depends on the appropriate use of toughened safety glass and correct enclosure design and installation. Thickness alone shouldn't be used as the measure of safety.

Which thickness is best for a shower enclosure?

There is no single best thickness.

6mm is excellent for many everyday enclosures and moving doors.

8mm offers a more substantial premium feel and is commonly used across higher-specification enclosures.

10mm is particularly suited to some substantial fixed-panel installations.

Is 8mm glass heavy?

It is noticeably heavier than 6mm glass of the same dimensions. That's why enclosures using thicker glass need hardware and supports specifically designed for the additional weight.

Find Your Shower Enclosure at Allbits

When comparing shower enclosures, glass thickness is useful — but don't let one number make the decision for you.

A quality 6mm enclosure can be an excellent practical choice.

An 8mm enclosure may provide the more substantial, premium feel you're looking for.

And 10mm can make sense for certain large fixed-panel installations.

The right choice depends on the enclosure design, your bathroom layout and your own priorities.

At Allbits Plumbing Supplies, you can compare different enclosure styles, glass specifications and door systems to find the right option for your bathroom.

Shop Shower Enclosures & Doors at Allbits

Shop Pivot Shower Doors

Shop Quadrant Shower Enclosures

Related Allbits Guides