Under sink bathroom storage is one of those things you don’t think about until the chaos becomes unbearable. That awkward cupboard with pipes running through it becomes a graveyard for half-used toiletries, forgotten cleaning products, and bottles you can’t quite reach without getting on your knees.
The good news? A decent under-sink organiser can transform this neglected space into genuinely useful storage. And January—when we’re all in that “new year, fresh start” mindset—is the perfect time to tackle it.
We’ve tested and researched the best options available in the UK, from sliding pull-out racks to clever lazy susans that actually spin around your pipes. Here are our top 9 picks for every budget and bathroom layout.
Table of Contents
Why Trust BartonMill?
BartonMill is a UK-focused home and interiors blog, and we research products the way you would—by reading hundreds of verified buyer reviews, checking what’s actually selling well on Amazon UK, and filtering out the duds with suspiciously perfect 5-star ratings.
For this guide, we analysed the top-selling under-sink organisers on Amazon UK, cross-referenced customer feedback for common complaints (flimsy construction, rust issues, misleading dimensions), and prioritised products with consistent 4+ star ratings across hundreds of reviews.
We don’t receive free products from brands. Our recommendations are based on research and real buyer experiences, and we only include affiliate links to products we’d genuinely consider buying ourselves.
Quick Picks: Our Top Recommendations
| Product | Best For | Price | Key Feature |
|---|---|---|---|
| AIXPI 2-Tier Pull-Out | Best Overall | £18-22 | Smooth sliding drawers, 2-pack value |
| SMONTER Expandable | Awkward Pipes | £15-20 | Width adjusts 37-70cm, removable panels |
| YouCopia Turntable | Deep Cabinets | £25-30 | 360° rotation, adjustable dividers |
| Vtopmart Clear Stackable Storage Drawers | Toiletries | £22-28 | See-through drawers, movable dividers |
| Amazon Basics L-Shaped Under-Sink Organiser | U-Bend Pipes | £20-30 | Designed around standard plumbing |
| Door Storage Baskets | Dead Space | £10-15 | Uses cabinet door interior |
| Bamboo Organiser | Eco-Friendly | £19-25 | Sustainable, premium look |
| Housolution Heavy-Duty | Heavy Items | £22-28 | 23kg capacity, 5 height levels |
| Silicone Mat | Leak Protection | £12-18 | Protects cabinet from water damage |
What to Consider Before You Buy
Before clicking “add to basket,” there are a few things worth measuring and thinking about:
Measure your cabinet space. This sounds obvious, but it’s where most people go wrong. Measure the width, depth, and height—and don’t forget to account for where your pipes sit. That U-bend takes up more room than you’d think.
Consider your pipe configuration. Is your waste pipe central or to one side? Some organisers have L-shaped designs specifically for working around awkward plumbing, while expandable shelves let you remove panels to fit around pipes.
Think about what you’re storing. Tall bottles need height. Small toiletries get lost without dividers. Cleaning products benefit from easy-grab access. The best organiser depends on what’s actually going in there.
Material matters in a bathroom. Under-sink areas can get damp. Look for rust-resistant metal (powder-coated steel or stainless steel), water-resistant plastic, or sealed bamboo. Avoid anything that’ll corrode or warp.
The 9 Best Under Sink Bathroom Storage Organisers
1. AIXPI 2-Tier Pull-Out Sliding Organiser — Best Overall
Price: £18-22 for 2-pack
This is the style you’ll see topping Amazon UK’s bestseller lists, and for good reason. The two-tier design with sliding mesh drawers makes everything visible and accessible—no more rummaging in the dark.
The pull-out mechanism runs on smooth tracks, so you can slide the whole unit forward to grab items at the back. It’s the difference between convenience and frustration when you’re in a rush.
Best for: Most bathrooms. The 2-pack means you can use one each side of the pipes, or keep one for the kitchen.
Dimensions: Approximately 26cm (W) x 40cm (D) x 35cm (H) per unit
AIXPI 2-Tier Pull-Out Sliding Organiser
- Smooth sliding drawers on tracks for easy access to back items
- Comes as 2-pack — use one each side of pipes or keep one for kitchen
- Includes hooks and side cups for cloths and sponges
2. SMONTER Expandable Under-Sink Shelf — Best for Awkward Pipes
Price: £15-20
If your pipes are in an awkward position, this is your solution. The width adjusts from 37cm to 70cm, and the removable shelf panels let you create custom gaps for pipes to pass through.
It’s not as sleek as the sliding options, but for bathrooms with tricky plumbing configurations, it’s often the only thing that actually fits. The stainless steel tubes are sturdy enough, though the plastic shelves are better suited to lighter items.
Best for: Cabinets with central or unusually positioned waste pipes. Also works well in rental properties where you need flexibility.
Dimensions: 37-70cm (W) x 26cm (D) x 38cm (H)
Philips LED Classic 8.5W B22
- Width adjusts from 37cm to 70cm to fit any cabinet
- Removable shelf panels create custom gaps around pipes
- Stainless steel tubes with hooks for hanging items
3. YouCopia SinkSuite Under-Sink Turntable — Best for Deep Cabinets
Price: £25-30
Lazy susans aren’t just for kitchens. This 30cm turntable spins 360° on stainless steel ball bearings, bringing items from the back of the cabinet forward without any reaching or rummaging.
The adjustable dividers keep bottles upright (no more domino effect when you grab the shampoo), and the tall outer walls prevent items falling off when you spin. It holds up to 13.5kg, which is more than enough for bathroom products.
Best for: Deep vanity cabinets where items get lost at the back. Also brilliant if you have lots of smaller bottles and products.
Dimensions: 30cm diameter
YouCopia SinkSuite Under-Sink Turntable
- 360° rotation on stainless steel ball bearings
- Adjustable dividers keep bottles upright
- 13.5kg weight capacity
4. Vtopmart Clear Stackable Storage Drawers — Best for Toiletries
Price: £22-28 for 2-pack
f you’re storing smaller items—makeup, skincare, medication, cotton pads—the mesh baskets on metal organisers just don’t cut it. These clear acrylic drawers are purpose-built for toiletries.
Best for: Bathrooms where you’re storing toiletries, cosmetics, and smaller items rather than cleaning products.
Dimensions: Various sizes available (small drawers approx 19cm x 15cm x 11cm)
Vtopmart Clear Stackable Storage Drawers
- Transparent so you can see contents at a glance
- Stackable to fit different cabinet heights
- Smooth-glide drawers with non-slip silicone pads
5. Amazon Basics L-Shaped Under-Sink Organiser — Best Design for U-Bends
Price: £20-30 for 2-pack
The L-shaped design isn’t a gimmick—it’s specifically engineered to work around standard U-bend plumbing. The narrower top tier sits above or beside the pipes, while the wider bottom tier makes use of the space below.
Best for: Standard vanity units with central waste pipes. The L-shape maximises the usable space around your plumbing.
Dimensions: 36cm (W) x 27cm (D) x 28cm (H) per unit
Amazon Basics L-Shaped Under-Sink Organiser
- L-shape fits around standard U-bend plumbing
- Slide-out bottom tray for easy access
- Powder-coated steel – rust-resistant and sturdy
6. Cabinet Door Storage Baskets — Best for Maximising Dead Space
Price: £10-15 for 2-pack
The inside of your cabinet door is prime real estate that most people completely ignore. These adhesive-mounted baskets stick to the door interior and create instant storage for frequently used items.
They’re ideal for things you grab daily – hair ties, cotton pads, razors, small bottles – keeping them at eye level instead of lost in the depths of the cabinet. The adhesive is strong enough to hold without drilling.
Best for: Using in combination with a floor-standing organiser. The door storage handles small items while the main organiser handles bottles and bulkier products.
Note: Check your cabinet door thickness – most work with doors at least 1.5cm thick.
Cabinet Door Storage Baskets
- Adhesive mounting – no drilling required
- Utilises dead space on cabinet door interior
- Perfect for daily items like hair ties and cotton pads
7. Bamboo Under-Sink Organiser — Best Eco-Friendly Option
Price: £19-25
If sustainability matters to you (or you simply prefer the look of natural materials over black metal), bamboo is a solid choice. This organiser has the same L-shaped, two-tier design as the metal options, but with a warmer aesthetic.
The bamboo is sealed with a water-resistant finish, which is essential for bathroom use. It’s heavier than plastic alternatives, which actually helps with stability – it won’t slide around when you’re pulling drawers out.
Best for: Eco-conscious buyers or bathrooms where the cabinet is often open and visible. The bamboo looks considerably better than utilitarian black metal.
Dimensions: 36cm (W) x 25cm (D) x 28-38cm (H, adjustable)
Bamboo Under-Sink Organiser
- Eco-friendly bamboo with water-resistant seal
- Premium natural look vs utilitarian black metal
- Height adjustable (28-38cm)
8. Housolution Height-Adjustable Metal Organiser — Best Heavy-Duty Option
Price: £22-28 for 2-pack
Some under-sink organisers feel flimsy the moment you load them up. This one doesn’t. The thickened carbon steel frame and 5-level height adjustment make it genuinely heavy-duty, with a 23kg weight capacity per unit.
The height adjustment is particularly useful, you can set it low for tall bottles on the top tier, or high to maximise the bottom drawer space. The pull-out mesh drawers slide smoothly even when fully loaded.
Best for: Storing heavier items like large bottles of cleaning products, or bathrooms where you need something that’ll last years rather than months.
Dimensions: 26cm (W) x 42cm (D) x 28-42cm (H, adjustable)
Housolution Height-Adjustable Metal Organiser
- Thickened carbon steel frame – 23kg capacity per unit
- 5-level height adjustment
- 2-pack included
9. Silicone Under-Sink Mat — Best for Leak Protection
Price: £12-18
This isn’t technically an organiser, but it solves a problem most people don’t think about until it’s too late: leaks. A slow drip from your pipes or a bottle that’s tipped over can damage your cabinet base without you ever noticing.
These silicone mats sit on the cabinet floor and contain any water that escapes. The raised lip (usually around 1cm) holds liquid in place, and the waterproof silicone won’t degrade over time. Many have a textured surface that also stops bottles sliding around.
A slow drip from your pipes can lead to damp and mould growth – something the NHS warns can cause respiratory problems and allergic reactions.
Best for: Using underneath any of the organisers above. It’s cheap insurance against water damage, especially in older bathrooms or rental properties.
Dimensions: Typically 86cm x 56cm (trim to fit)
Silicone Under-Sink Mat
- Raised lip contains leaks and spills
- Trim-to-fit for any cabinet size
- Textured surface stops bottles sliding
Frequently Asked Questions
How do I measure for an under-sink organiser?
Measure the internal width, depth, and height of your cabinet—not the external dimensions. Then note where your pipes are positioned and how much clearance you have around them. Most product listings include dimensions, so compare before ordering.
Can I use kitchen under-sink organisers in the bathroom?
Yes, they’re essentially the same products. The main difference is that bathroom cabinets tend to be smaller, so check the dimensions carefully. Kitchen organisers designed for full-size sink units often won’t fit bathroom vanities.
Do I need tools to install these?
Most under-sink organisers are freestanding or use adhesive—no drilling required. The expandable shelf types usually just push-fit together. Assembly typically takes 5-10 minutes at most.
What if my organiser rusts?
Look for powder-coated steel or stainless steel rather than plain metal. If you notice rust starting, a silicone mat underneath can prevent moisture contact with the cabinet floor, and wiping the organiser dry occasionally helps. Most quality options have rust-resistant coatings that hold up well in bathroom humidity.
The Bottom Line
For most bathrooms, the AIXPI 2-Tier Pull-Out Organiser offers the best combination of price, functionality, and ease of use. The sliding mechanism genuinely makes a difference to daily convenience, and the 2-pack gives you flexibility in how you configure your space.
If your pipes are awkward, go for the SMONTER Expandable Shelf. If you’re storing toiletries rather than bottles, the Delamu Clear Acrylic Drawers are worth the extra spend.
And whatever you choose, consider adding a silicone under-sink mat underneath. At £12-15, it’s cheap protection against the leaks you won’t notice until the damage is done.
