A quadrant shower tray is the curved corner tray that tucks a shower neatly into the corner of a room, and for most compact bathrooms it’s the most space-efficient shape going. The two sizes that cover the vast majority of UK homes are 800 x 800mm for a tight en-suite and 900 x 900mm for a bit more elbow room. If your corner isn’t square, an offset quadrant gives you a longer showering area without eating into the rest of the floor. Get the size and the handing right and the rest is mostly about material and finish.

This guide walks through the sizes, the difference between a standard quadrant and an offset one, what stone resin actually means, and how to choose between anti-slip and low-profile. There’s a quick comparison near the end if you just want the short version.

• What is a quadrant shower tray?
• Quadrant shower tray sizes: 800, 900 and 1000
• Offset quadrant trays and handing
• Materials: stone resin and what it means
• Anti-slip and low-profile trays
• Finishes: white, grey and slate
• Fitting: risers, waste and the enclosure
• How to choose the right quadrant tray
• FAQ

What Is a Quadrant Shower Tray?

A quadrant shower tray has two straight sides that sit flush against the corner walls and a single curved front. Picture a quarter of a circle and you’ve got it. That curved front gives you a generous standing area inside the enclosure while keeping the footprint tight, so the tray pushes back into the corner and leaves the rest of the floor free.

It’s the natural partner to a curved quadrant enclosure with sliding doors that curve back on themselves and don’t swing out into the room. Against a square or rectangular tray, the quadrant almost always wins on floor space, and it’s the shape we’d point most people towards for a corner install. If you’re still deciding on the overall enclosure shape, our guides to quadrant and corner enclosures and shower enclosure types compared cover that side of the decision.

Quadrant Shower Tray Sizes: 800, 900 and 1000

Quadrant trays come in a handful of standard sizes, and picking the right one is mostly about being honest with yourself about how much room you’ve got. Here’s the rundown:

• 800 x 800mm. The classic small-bathroom and en-suite size. It’s the most popular quadrant by a distance and works where space is genuinely tight. You’ll have enough room to shower comfortably, just don’t expect to do star jumps.
• 900 x 900mm. The step up. An extra 100mm in each direction makes a real difference underfoot, and it’s the size we’d recommend for a family bathroom or any en-suite where the wall allows it.
• 1000 x 1000mm and up. A roomy square quadrant for larger bathrooms. Lovely if you’ve got the wall space, overkill if you haven’t.

For the entry-price 800 x 800 option, the Kstone 800 x 800 Quadrant Shower Tray at £189 is a sensible starting point. It’s a reinforced, high-strength tray with a smooth, easy-clean surface, and its quadrant shape is built for maximising floor space in a corner install. For a family bathroom, the Kstone 900 x 900 Quadrant Shower Tray at £229 is the same reinforced build with the larger footprint, giving you a more comfortable showering area without taking over the room.

One thing people forget: the tray size and the enclosure size need to match. An 800mm tray takes an 800mm quadrant enclosure, not a 900mm one. Measure the corner, check both, and order them as a pair. If you want the full method on measuring up before you buy, our guide to what size shower tray you need walks through it step by step.

Offset Quadrant Trays and Handing

An offset quadrant isn’t square. One side is longer than the other, so instead of 800 x 800 you get something like 1000 x 800mm. The curved front is still there, but the asymmetric shape gives you a noticeably bigger standing area while still tucking into the corner. It’s the answer when one wall is longer than the other, or when you simply want more room to move without going full rectangular.

The Kudos Kstone 1000 x 800 Offset Quadrant Shower Tray at £239 is a good example. Its offset profile gives you that expanded showering area while still optimising the corner space, and the low-profile design keeps the step-in height minimal.

Here’s the bit that trips people up: offset quadrants are handed. You need to know whether you want a left-hand or a right-hand tray, and it depends on which way the long side runs as you face the shower. Stand where you’d stand to use it: if the longer side is on your right, you want a right-hand tray, and vice versa. Get it wrong and the tray won’t fit your corner. The 1000 x 800 above is a right-hand version, so check your layout before you order, and ask us for the left-hand equivalent if your corner needs the mirror image.

Materials: Stone Resin and What It Means

Most modern quadrant trays are made from stone resin, and it’s worth knowing what you’re buying. Stone resin is a blend of crushed stone and resin set into a solid, dense tray with a smooth gel-coat surface on top. The result feels reassuringly solid underfoot, doesn’t flex or creak when you stand on it, and holds its shape far better than the thin acrylic trays of old.

That solidity is the main reason to choose it. A cheap flexing tray is the number one cause of cracked seals and leaks, because every time it moves it works the silicone loose. A dense stone resin tray stays put and keeps the water where it should be. The trade-off is weight: these trays are heavier, so they’re a two-person lift and they need a level, fully supported base under them.

The reinforced Kstone trays above are built from a high-strength material that delivers the same solid performance. If you want the look for less, the Shires 800 x 800 Stone Quadrant Shower Tray at £119 is a value-priced option with a durable stone-effect finish and a low-profile design, and the Shires 900 x 900 Stone Quadrant Shower Tray at £129 gives you the same finish with a generous 900mm footprint. Both are a genuinely affordable way into a solid-feeling tray.

Anti-Slip and Low-Profile Trays

Two features come up again and again when people are choosing a quadrant tray, and they’re worth understanding because they solve different problems.

Anti-slip is a textured surface that gives you grip underfoot when the tray’s wet. A standard gel-coat tray is smooth and can get slippery with soap and water, so an anti-slip finish is the sensible call for a family bathroom, anywhere with kids, or a household with anyone less steady on their feet. The Kstone 800 x 800 Anti Slip Quadrant Shower Tray at £219 is the one to look at here. It’s finished in classic white with an anti-slip surface, and the low-profile design keeps the step-in height down. For peace of mind in a family bathroom, the extra £30 over the standard 800 x 800 is money well spent.

Low-profile means the tray sits low to the floor, so there’s less of a lip to step over. It looks cleaner, it’s easier to get into, and it’s a big help for anyone who finds a high step awkward. Most of the trays here, including the offset and the Shires stone-effect models, are low-profile as standard. If accessibility is a priority for your household, it’s worth reading our guide to accessible showers, grab rails and shower seats alongside this one.

You can have both: anti-slip and low-profile aren’t either-or. The anti-slip Kstone above is also low-profile, which is exactly the combination we’d recommend for a family or accessible setup.

Finishes: White, Grey and Slate

Quadrant trays aren’t just white any more, though white is still the safe, match-anything default. If you want something with a bit more character, two finishes are worth knowing about:

• Grey. A modern, architectural look that works well with darker tiling and brushed metal fittings. The Kstone 900 x 900 Anti Slip Grey Quadrant Shower Tray at £249 is finished in modern grey for a refined, architectural feel, and it carries an anti-slip surface for grip underfoot. It’s proof that a quadrant tray can be a design feature, not just a practical base.
• Slate. A textured slate-effect finish gives you a premium, contemporary look at the floor of the shower. Bathroom Point’s range includes slate-effect quadrant trays with a curved front and compact footprint that fit neatly into the corner. Browse the full quadrant shower trays range to see the current slate options, as they make a real statement in a darker scheme.

If you’re co-ordinating the whole room, matching your tray finish to your fittings is the same logic as choosing your metalwork. Our guide to bathroom tap finishes compared covers how the popular finishes sit together if you want everything to pull in the same direction.

Fitting: Risers, Waste and the Enclosure

A few practical points to sort before the tray goes down, because they cause headaches if you leave them too late.

The waste. Quadrant trays need a fast-flow shower waste, and most are sold without one, so add it to the order. A 90mm fast-flow waste is the standard, and it matters more than people think: a slow waste leaves you standing in a puddle.

Risers and legs. Some trays sit straight onto a level floor on a full bed of adhesive. Others go on a riser kit with adjustable legs and a plinth panel, which makes levelling far easier and gives you access to the waste underneath. It’s our default unless your floor is dead level and the waste run is simple. Have a look at the tray riser kits range to match your tray.

The enclosure. The tray and the enclosure are a pair. Match the size exactly (800 to 800, 900 to 900), and for an offset quadrant match the handing too. If that decision is still open, our guide to choosing the right shower doors covers what suits a quadrant.

Whatever you fit, get the tray dead level before anything else goes in. A tray that’s even slightly out will pool water at one side and strain the seals. It’s a five-minute job with a spirit level and it saves a world of grief later.

How to Choose the Right Quadrant Tray

Here’s the short version. Work down the list and the right tray usually falls out.

If you have…	Go for	Example
A tight en-suite or small bathroom	800 x 800mm quadrant	Kstone 800 x 800, £189
A family bathroom with room to spare	900 x 900mm quadrant	Kstone 900 x 900, £229
One wall longer than the other	Offset quadrant (check handing)	Kudos Kstone 1000 x 800 offset, £239
Kids or anyone less steady	Anti-slip, low-profile	Kstone 800 x 800 anti-slip, £219
A tight budget	Stone-effect quadrant	Shires 800 x 800 stone, £119
A modern, design-led scheme	Grey or slate finish	Kstone 900 x 900 grey, £249

The one piece of advice we’d give above all: don’t skimp on the tray to splash out on the enclosure. The tray is the bit that holds the water, takes your weight every day and lives at the bottom of the shower for the next fifteen years. A solid stone resin tray, level and properly sealed, is what keeps the whole thing watertight. Spend on that and you’ll never think about it again.

Frequently Asked Questions

What is a quadrant shower tray?

It’s a corner shower tray with two straight sides that sit against the walls and a single curved front. The curved shape gives you a generous standing area while keeping the footprint tight in the corner, which is why it suits small and family bathrooms so well.

What size quadrant shower tray do I need?

For a tight en-suite or small bathroom, 800 x 800mm is the standard choice. For a family bathroom or wherever the wall allows, step up to 900 x 900mm for more room underfoot. If one wall is longer than the other, an offset quadrant such as 1000 x 800mm gives you a bigger showering area without taking over the floor. Always match the tray size to the enclosure size.

What is an offset quadrant shower tray?

An offset quadrant has one side longer than the other, so it’s something like 1000 x 800mm rather than a square 800 x 800. It gives you a larger standing area while still tucking into the corner. Offset trays are handed, so you need to choose left-hand or right-hand depending on which way the longer side runs as you face the shower.

Are quadrant shower trays anti-slip?

Some are and some aren’t. A standard gel-coat tray has a smooth surface, while an anti-slip tray has a textured finish that gives grip when wet. For a family bathroom or anyone less steady on their feet, an anti-slip tray such as the Kstone 800 x 800 anti-slip at £219 is the sensible choice. Many anti-slip trays are also low-profile, so you get grip and an easy step-in together.

What is a stone resin shower tray?

Stone resin is a blend of crushed stone and resin set into a solid, dense tray with a smooth surface on top. It feels firm underfoot, doesn’t flex or creak, and holds its seal far better than thin acrylic trays. The trade-off is weight, so it needs a level, fully supported base and is a two-person lift.

Do I need a riser kit for a quadrant shower tray?

Not always. If your floor is level and the waste run is simple, the tray can sit straight onto a bed of adhesive. A riser kit with adjustable legs and a plinth panel makes levelling easier and gives you access to the waste underneath, so it’s the safer default where you need that access or your floor isn’t dead level.

Which is better, an 800 or 900 quadrant tray?

Neither is better outright, it depends on your space. An 800 x 800 suits tight en-suites and small bathrooms. A 900 x 900 gives you noticeably more room underfoot and is the better pick for a family bathroom if the wall allows it. Measure your corner first and let the available space decide.

Ready to choose? Browse the full quadrant shower trays range or the wider shower trays collection at Bathroom Point. If you’re still settling the enclosure shape, our guide to quadrant and corner enclosures pairs neatly with this one, and if you’re squeezing a shower into a small space, how to design a small bathroom is well worth a read.