Merlyn Shower Doors

Choosing a Shower Door from Merlyn

When it comes to choosing a shower door for your bathroom, you are going to want to make sure that your chosen shower door is the right balance of quality, safety and style, and this is where Merlyn shower doors come into play.

A shower door needs to feel secure in everyday use and suit the layout of your bathroom, while still looking right as part of the finished space. By choosing a Merlyn shower door, you also benefit from consistent build quality across the range, with strong guarantees in place to give added peace of mind over time.

Are Merlyn Shower Doors Good Quality?

Merlyn has built a strong reputation in the UK bathroom market for producing shower doors that feel as good as they look. The build quality is consistent across the range - from the entry-level Mbox collection through to the premium Ionic and 10 Series lines -with each door engineered to perform reliably in daily use rather than simply look the part on day one.

Every Merlyn shower door in the Series range is manufactured using toughened safety glass, which is significantly stronger than standard glass and designed to withstand the thermal changes and moisture levels that are a constant in any bathroom environment. The hardware - hinges, runners, handles and seals - is built to the same standard, with smooth operation and long-term durability in mind.

Merlyn backs this up with a lifetime guarantee on their Series range, which speaks to their confidence in how these products are made. For homeowners investing in a bathroom renovation, that kind of warranty removes a significant amount of risk and is something you won't find across the board with all shower door brands.

Their doors are also widely specified by bathroom fitters and contractors, which is a practical indicator of quality - trade professionals tend to return to products that install well and don't generate call-backs.

Choosing 6mm, 8mm, or 10mm Toughened Safety Glass

One of the more common questions when choosing a Merlyn shower door is which glass thickness is the right choice - and it helps to understand what the differences actually mean in practice rather than just on paper.

6mm glass is the standard option across Merlyn's Mbox and Ionic Source ranges. It is toughened safety glass and more than adequate for most domestic bathrooms. It feels solid, performs well over time, and keeps the overall weight of the door manageable -- which matters for bi-fold and pivot mechanisms in particular. If you are working to a budget or fitting out a family bathroom, 6mm is a reliable and practical choice. Note that within the Merlyn 6 Series, most door styles use 6mm glass - however the Pivot door variant uses 8mm, so always check the individual product specification when ordering.

8mm glass steps up the feel of the door noticeably. It has a greater sense of weight and solidity when opening and closing, which many people associate with a more premium product. The Merlyn 8 Series and Ionic Essence ranges use 8mm glass throughout, and it is the most popular thickness for those upgrading a bathroom or fitting an en-suite where aesthetics are a priority alongside performance.

10mm glass is the premium option and is used in Merlyn's 10 Series range. The additional thickness gives the door a genuinely substantial feel and a particularly clean, high-end look - especially in frameless configurations where the glass itself is the focal point of the design. It is the natural choice for luxury bathroom projects or where a statement piece is the intention.

As a general guide: for everyday family bathrooms, 6mm works well; for a mid-range upgrade or en-suite, 8mm is the sweet spot for most buyers; and for a high-specification or designer bathroom, 10mm is worth the additional investment.

Merlyn Shower Door Range Comparison

Are Merlyn Shower Doors Easy to Clean?

Cleaning the shower is one of those jobs nobody particularly enjoys, and it becomes significantly harder when limescale and soap scum are left to build up on untreated glass. This is something Merlyn has addressed directly through the inclusion of their Mershield Stayclear coating, which is applied as standard across the glass panels in their range.

Mershield works by creating a protective barrier on the surface of the glass that makes it harder for water minerals, soap residue and general bathroom grime to bond with the surface. In practical terms, this means droplets bead up and run off rather than drying and leaving marks, and when you do clean the door, far less effort is required to restore it to a clear finish.

For households in hard water areas - which covers a significant portion of the UK - this is a particularly valuable feature. Limescale is one of the most stubborn bathroom cleaning challenges, and having a glass coating that actively reduces its grip on the surface makes a noticeable day-to-day difference.

In terms of the physical cleaning itself, the framed and semi-framed Merlyn doors are designed with minimal crevices around the seal and profile areas, reducing the spots where mould and soap can accumulate over time. For the easiest maintenance possible, the frameless options in the 8 Series Frameless and Ionic Essence collections remove profiles from the equation almost entirely, leaving just the glass and minimal hardware to keep clean.

Merlyn Shower Door Finishes & Colours

To match your bathroom brassware, Merlyn doors are available in a variety of premium finishes. Choose the timeless Polished Chrome for a classic look, or opt for contemporary trends with Matt Black and Brushed Brass frames. These finishes are designed to be durable and resistant to the humid bathroom environment, ensuring your enclosure looks new for years to come.

How to Measure for a Merlyn Shower Door

Measuring correctly before you order is essential -- shower doors are manufactured to precise dimensions and incorrect measurements are the most common cause of returns.

For a recess installation (between two walls): Measure the width of the opening at three points -- top, middle and bottom -- and use the smallest measurement. This accounts for walls that aren't perfectly parallel. Most Merlyn doors have an adjustment range built in, typically around 20-30mm, which gives you some flexibility.

For a corner installation: Measure both walls from corner to the intended outer edge of each panel. Confirm both measurements are square before ordering.

Height: Standard Merlyn shower doors are 1900mm tall. If you have a lower or non-standard ceiling, check the product spec and allow for a tray if applicable.

Adjustment range: Always check the stated adjustment range on the specific product -- this is listed on each product page and tells you the minimum and maximum recess width that door will fit.

If you're unsure, our expert team is available on 0203 113 2122 (7:30am-6:00pm) and can walk you through your measurements before you order.

Which Type of Merlyn Shower Door is Right for my Bathroom?

Merlyn has a number of great options in their shower door range, all of which are made to the same high standard. But what are these options and why might you choose them for your shower door?

Pivot Shower Doors

 A pivot shower door is a door that opens on a pivot, much like a standard room door. These are the ideal choice for a recessed installation, where the door is fitted between two existing tiled walls (an alcove). Merlyn pivot doors provide a wide opening for easy access and can be installed as a standalone door in a recess or paired with a side panel to create a full corner enclosure.

Sliding Shower Doors

 If you are worried that space might be an issue when it comes to having a shower in your bathroom, then a sliding shower door is a great space saving option. These doors slide open, rather than open out into the space, which means that you don't need to worry where the shower enclosure is located in your bathroom. 

Bi-Fold Shower Doors

A bi-fold shower door folds inward on itself when opened, requiring very little clearance in front of the enclosure. This makes them an excellent choice for smaller bathrooms or compact en-suites where a pivot or sliding door isn't practical. Merlyn bi-fold doors are available across the Mbox, Ionic and 8 Series Frameless ranges, covering glass options from 4mm to 8mm, with widths typically from 700mm to 900mm.

Quadrant Shower Enclosures

Another space saving option is a quadrant shower enclosure. These are designed to fit into corners, which means that even an awkwardly shaped or sized bathroom can have its very own shower enclosure installed. As well as saving space in your bathroom, quadrant showers have their very own sense of space inside them, this is due to their curved design, which means that they feel spacious and they also look great too.

Low Level Access

Merlyn's low level access shower doors are designed for those with limited mobility or anyone who wants a safer, easier entry to their shower. The lowered threshold removes the need to step over a high frame, making getting in and out significantly easier and safer. Available in a range of wider widths, these doors are compatible with level access trays and are ideal for those looking to future-proof their bathroom without committing to a full wet room installation

Frameless Shower Doors

For those seeking a more minimalist, high-end look, the Merlyn 8 Series Frameless collection offers a sleek aesthetic without the need for bulky profiles, while still maintaining the 8mm glass durability found across the range.