Best Bathroom Storage — 40L (2026)
2 bathroom storage matching capacity “40L”, hand-picked from UK Amazon listings.
Not sure which one to pick? Read our Best Bathroom Storage for Small UK Bathrooms (2026) guide.

#1 Pick
VonHaus Holbrook Bathroom Storage Cabinet, White Freestanding 4-Drawer Cupboard- MDF
- 40L
£59.99
Pros
- 4 drawers plus adjustable shelf for flexible storage
- Shaker tongue & groove design
- Water-resistant paint coat
- Anti-tip straps included
Cons
- Freestanding only — takes up floor space

#2 Pick
kleankin Tall Bathroom Storage Cabinet, Freestanding Tower Cabinet with 3 Open Shelves and Adjustable Shelf, Antique White- Engineered Wood
- 40L
Currently unavailable
Pros
- Tall freestanding tower maximises vertical storage
- 3 open shelves plus 1 adjustable shelf
- Antique white finish suits most bathroom styles
Cons
- Open shelving offers no concealed storage for toiletries
Maximise your bathroom space with our curated selection of 40L bathroom storage solutions. Finding room for towels, toiletries, and cleaning supplies can be a challenge, but this capacity offers a practical balance between generous storage and compact design – perfect for smaller bathrooms or maximising existing floor space. These units are designed to neatly organise your essentials, keeping your washroom tidy and functional. Explore our range of cabinets, drawers, and shelving options all offering 40 litres of internal volume.
FAQ
What materials are these 40L bathroom storage units typically made from?
You’ll find these units constructed from a variety of durable materials including MDF, plastic, and metal. MDF is common for its affordability and stability, while plastic offers water resistance and durability. Metal frames provide added strength and support.
How easy are they to assemble?
Assembly times vary depending on the specific model; most units include clear instructions and all necessary fixings. However, it’s always advisable to read the included documentation carefully before starting and allow approximately 30-60 minutes for assembly.
Can I mount these storage units to the wall?
Some models are designed for wall mounting, usually with pre-drilled holes. Check the product specifications to confirm if your chosen unit includes mounting hardware or if you’ll need to purchase this separately – Amazon offers a wide selection of brackets.
What types of items can I store in a 40L bathroom storage unit?
This capacity is suitable for storing towels, toiletries, cleaning supplies, hair styling tools, and other personal care products. Consider the internal dimensions when choosing items to ensure a comfortable fit and prevent overcrowding.
Are these units waterproof?
While designed for bathroom use, these storage solutions are not fully waterproof. Avoid direct exposure to water splashes or excessive humidity. It's recommended to place them away from showerheads and sinks to protect against moisture.
What dimensions should I expect for a 40L bathroom cabinet?
Typical dimensions range from approximately 80cm to 120cm in width, 40cm to 60cm in depth, and 30cm to 50cm in height. Always verify the exact measurements listed on the product page before ordering to ensure it fits your space.
Do these units come with handles?
Many models feature integrated handles for easy access to contents. However, some may have push-to-open mechanisms or require you to purchase separate handles if preferred – check the product description carefully.
Are they suitable for use under a sink?
Some 40L units are designed for undersink storage, but ensure there's enough clearance for access and that the unit is stable. Consider the depth of your cabinet when selecting an appropriate size.
What colour options are available?
You’ll typically find these storage solutions in white, grey, or occasionally a light wood finish. Check individual product listings to confirm the exact colour availability before making your purchase.
How do I return an item purchased through Amazon?
Amazon's standard returns policy applies – you can initiate a return within 30 days of receipt if the item is unused and in its original packaging. Refer to Amazon’s website for detailed instructions on how to start the return process.