Shortlist · Storage & home · 6 models

Under-bed storage boxes and bags for low beds and small bedrooms

The gap under a bed is the biggest empty space in a small bedroom, and the wrong box wastes it. Six ways to use it, from a 15 cm fabric drawer to a 50-litre box that locks shut, chosen by height, length and how they move — because those decide whether it fits and whether you will actually pull it out.

By The Final Cost deskUpdated 25 September 2026Facts checked 23 September 2026

Wham Crystal 32 L clear under-bed storage box with clear lidWham 32 L clear storage box with cool grey folding split lid and wheelsReally Useful Box 50 litre clear storage box with blue clip handles, lid removed and filled with cases
Pictured: Wham Crystal 32 L under-bed box, set of 5, Wham 32 L wheeled box with folding lid, set of 5, Really Useful Box 50 L.

Quick answer

The six options at a glance

At a glance
ModelHeightLengthWidthCapacity per boxBoxes in the packWhere to buy
Wham Crystal 32 L under-bed box, set of 5for the lowest rigid box18 cm60 cm40 cm32 L5View listing
Wham 32 L wheeled box with folding lid, set of 5for boxes you open often18.5 cm60 cm40 cm32 L5View listing
Really Useful Box 50 Lfor one big, strong box23 cm71 cm44 cm50 L1View listing
SONGMICS under-bed storage bags, set of 2 (RUB002G01)for a 15 cm gap15 cm†82 cm†40 cm†No confirmed data2†View listing
Lifewit 40 L under-bed storage bags, set of 3for soft things you slide out weekly15 cm†60 cm†45 cm†40 L†3†View listing
Spacesaver Jumbo vacuum storage bags, 5-packfor duvets and pillowsNo confirmed data102 cm†76 cm†No confirmed data5†View listing

Scroll sideways to see every column

† Figure from a retailer listing or otherwise awaiting confirmation from the manufacturer; other figures come from manufacturer manuals and leaflets.

Height is the number that decides everything: it has to be smaller than the gap under your bed with a couple of centimetres to spare. The Wham and Really Useful figures come from the manufacturers’ own pages; the fabric and vacuum bags are marketplace brands, so their dimensions come from the listings and are marked as pending.

Wham Crystal 32 L under-bed box, set of 5 — for the lowest rigid box

for the lowest rigid box

Wham Crystal 32 L under-bed box, set of 5

Wham Crystal 32 L clear under-bed storage box with clear lid
Height
18 cm
Length
60 cm
Width
40 cm
Capacity per box
32 L
Boxes in the pack
5
See on Amazon.co.uk

Check price on Amazon.co.uk

This is the box most UK bedrooms already have one of, and there is a reason. What More UK moulds it in Britain to 60 × 40 × 18 cm, which is the lowest a rigid 32-litre box gets here, and the base has integral sliders — raised runners — so a full box comes out from under a slatted bed without you lifting the frame.

The proportions suit a standard double: two boxes side by side across the width of the bed, or three end to end down its length, still leave the middle free. The lid clips on all round and is clear, like the body, so you see what is inside without opening anything. That is a convenience and a small drawback: a bedroom full of visible clutter looks like a bedroom full of clutter.

The one thing to check before ordering is the pack. The listing title says a set of five; one of the listing bullets says ten. Both may have been true at different times, so confirm the quantity on the live page. Five boxes at 1.1 kg each is also more plastic than a single bed needs — if you want two, look at the single-box listings or the Really Useful below.

Sliders are not wheels. On boards or laminate they glide; on a deep carpet a full box drags, and that is exactly what the wheeled version fixes.

Strengths

  • 18 cm high — the lowest rigid box here
  • Integral sliders, so a full box pulls out without wheels
  • Made in Britain by What More UK

Limitations

  • The listing is unclear whether you get five boxes or ten
  • Sliders, not wheels — a full box drags on carpet
  • Clear lid shows the clutter as well as the contents

Good for

  • a slatted or metal bed with 20 cm or more of clearance
  • seasonal clothes and shoes split across equal boxes

Look elsewhere if

  • a bed with under 20 cm of clearance
  • anyone who wants one big box rather than five small ones

Wham 32 L wheeled box with folding lid, set of 5 — for boxes you open often

for boxes you open often

Wham 32 L wheeled box with folding lid, set of 5

Wham 32 L clear storage box with cool grey folding split lid and wheels
Height
18.5 cm
Length
60 cm
Width
40 cm
Capacity per box
32 L
Boxes in the pack
5
See on Amazon.co.uk

Check price on Amazon.co.uk

Same footprint, same 32 litres, same British maker, three changes that matter in use. Wheels instead of sliders, so the box rolls out over carpet. A folding split lid, hinged in the middle, so you lift one half and take out a jumper without pulling the whole box out from under the bed. And a cool grey lid, which hides the contents — the opposite trade-off to the clear Crystal.

The cost is height: 18.5 cm for the body, and the wheels sit under it, so measure a low frame with the wheels in mind rather than the quoted figure. At 1.38 kg a box it is a little heavier than the Crystal, which you will not notice under a bed.

What More UK says the boxes stack when in use and nest when empty, so a set of five that you are not using yet takes up one box’s worth of cupboard. The split lid is the reason to choose this over the Crystal: if the things under your bed are ones you reach for every week — gym kit, the second duvet, spare towels — opening half a lid beats hauling out a box.

Strengths

  • Wheels and a folding split lid: open one half without moving the box
  • Stacks in use, nests when empty
  • Made in Britain

Limitations

  • 18.5 cm high plus wheels — check a low frame carefully
  • Five boxes is a lot of plastic if you need two

Good for

  • carpeted bedrooms where sliders drag
  • things you reach for often

Look elsewhere if

  • clearance under 19 cm
  • one-off storage you never touch

Really Useful Box 50 L — for one big, strong box

for one big, strong box

Really Useful Box 50 L

Really Useful Box 50 litre clear storage box with blue clip handles, lid removed and filled with cases
Height
23 cm
Length
71 cm
Width
44 cm
Capacity per box
50 L
Boxes in the pack
1
See on Amazon.co.uk

Check price on Amazon.co.uk

The Really Useful 50 L is a different proposition: one box instead of five, 71 cm long and 44 cm wide, with 23 cm of height that buys you 50 litres. The manufacturer publishes the internal space too — 60.5 × 37 × 20 cm — which is the figure you actually need when you are wondering whether a folded winter coat or a boxed set fits.

Its lid is the reason people buy the brand: the handles swing up and lock over the lid, so a full box can be carried by them without the lid coming off. Really Useful lists under-bed storage as one of the box’s intended uses, and it stacks, so two of them in a cupboard behave.

The trade-offs are all about that height and weight. At 23 cm it needs the most clearance of anything here — a slatted bed with 25 cm or more, not a low frame. It has no wheels or sliders, and at 2.6 kg empty it is a two-handed lift once full. It is sold singly, which is right for this size: one of these holds what two of the Wham boxes hold.

Strengths

  • 50 litres in a single box, 23 cm high
  • The handles lock the lid — safe to carry full
  • Really Useful publishes the internal space: 60.5 × 37 × 20 cm

Limitations

  • 23 cm high — needs the most clearance of the six
  • No wheels or sliders, and 2.6 kg before you fill it
  • Sold singly

Good for

  • a bed with 25 cm or more of clearance
  • bulky items: bedding, winter coats, boxed things

Look elsewhere if

  • low frames
  • sliding in and out every week

SONGMICS under-bed storage bags, set of 2 (RUB002G01) — for a 15 cm gap

for a 15 cm gap

SONGMICS under-bed storage bags, set of 2 (RUB002G01)

SONGMICS grey fabric under-bed storage bag with transparent zipped lid and handles
Height
15 cm†
Length
82 cm†
Width
40 cm†
Bags in the pack
2†
See on Amazon.co.uk

Check price on Amazon.co.uk

When the gap is 15 or 16 cm, no rigid box on this page fits, and this is where the fabric drawers earn their place. The SONGMICS pair is 82 cm long, 40 cm wide and 15 cm high — long enough to reach well under a double bed — with a transparent zipped lid and a Velcro divider that lets you keep summer and winter apart in one drawer.

It is not a box. The walls and base are fabric stiffened with 2 mm cardboard, which keeps the shape when you slide it, but it will not take weight on top and it should not live in a damp room. The 82 cm length also needs checking against the depth of your bed: on a small double it will stick out at the foot.

Every figure above comes from the listing. SONGMICS’s own page could not be reached when this was checked, so treat the dimensions as the seller’s until confirmed. Folded flat, the pair disappears into a wardrobe when not needed, which no rigid box can do.

Strengths

  • 15 cm high — fits where rigid boxes do not
  • Transparent lid and a Velcro divider to split seasons
  • Folds flat when empty

Limitations

  • Cardboard-stiffened fabric, not a rigid box
  • 82 cm long — measure the depth of the bed first
  • Every dimension comes from the listing, not from SONGMICS

Good for

  • low beds and sofas
  • seasonal clothes and blankets

Look elsewhere if

  • damp rooms — the stiffening is cardboard
  • heavy or sharp-cornered items

Lifewit 40 L under-bed storage bags, set of 3 — for soft things you slide out weekly

for soft things you slide out weekly

Lifewit 40 L under-bed storage bags, set of 3

Lifewit grey fabric under-bed storage bag with clear front window and reinforced handles
Height
15 cm†
Length
60 cm†
Width
45 cm†
Capacity per bag
40 L†
Bags in the pack
3†
See on Amazon.co.uk

Check price on Amazon.co.uk

The Lifewit trio is the softest option here and the easiest to move: each bag is 60 × 45 × 15 cm, 40 litres, with four reinforced handles — two on the front, two on the sides — so it comes out with one hand from either direction. A clear front window shows what is inside without unzipping.

The fabric is non-woven and breathable, which suits towels, T-shirts and bedding, and each bag folds down to 26 × 22 × 10 cm when empty. Three bags is a full set for a double bed with the middle left clear.

Being soft-sided is also the limit. Stack anything on a bag and it sags; shoes or anything with corners will show through the fabric; and there is no seal against dust, only a zip. As with the SONGMICS, the dimensions and the 40-litre figure are the listing’s own — Lifewit is a marketplace brand without a reachable manufacturer page — so they are marked as pending in the table.

Strengths

  • Four reinforced handles — pulls out with one hand
  • Folds to 26 × 22 × 10 cm when not in use
  • Breathable fabric with a clear window

Limitations

  • Soft-sided: anything stacked on top crushes it
  • Dimensions and capacity come from the listing only
  • Three bags may be more than one bed needs

Good for

  • towels, T-shirts and bedding
  • a bed you slide things under every week

Look elsewhere if

  • dust-proof storage
  • shoes or anything with corners

Spacesaver Jumbo vacuum storage bags, 5-pack — for duvets and pillows

for duvets and pillows

Spacesaver Jumbo vacuum storage bags, 5-pack

Spacesaver jumbo vacuum storage bags with a hand pump, one bag shown compressed with bedding inside
Bag length
102 cm†
Bag width
76 cm†
Bags in the pack
5†
See on Amazon.co.uk

Check price on Amazon.co.uk

A spare duvet does not fit in any box on this page, and it is the single bulkiest thing most small bedrooms need to hide. The Spacesaver Jumbo bags are the answer to that one problem: five bags of about 102 × 76 cm (the listing gives 40 × 30 inches), a double-zip seal with a one-way valve, and a hand pump in the pack so you do not need a vacuum cleaner to compress them.

There is no height in the table because there is no fixed height: a compressed bag is as thin as its contents allow, which for a synthetic duvet is a few centimetres. That makes vacuum bags the only option for a gap too low for even the fabric drawers.

Two cautions. Down and feather fillings are not meant to stay compressed for months — check the care label before you flatten a good duvet. And these are bags, not boxes: nothing protects the contents from a knock or a heel, so they belong under the bed or on top of a wardrobe, not on a floor you walk across. They are reusable; the seal is the part to look after.

Strengths

  • Flattens duvets and pillows that no box will take
  • Hand pump included — no vacuum cleaner needed
  • Reusable double-zip seal

Limitations

  • Compressed thickness depends on the contents — no fixed height to plan around
  • Down and feather bedding does not like long compression; check the care label
  • Bags, not boxes: no protection from knocks

Good for

  • spare duvets and winter bedding
  • the shallowest gaps

Look elsewhere if

  • things you use every week
  • delicate or structured items

How to choose

  1. Measure the clearance first. Floor to the lowest part of the frame or slats, minus 2–3 cm. Under 17 cm: vacuum bags. 17–19 cm: fabric bags or the Wham Crystal. 19–24 cm: either Wham. 25 cm and up: the Really Useful 50 L becomes possible.
  2. Then measure the depth of the bed. An 82 cm SONGMICS bag or a 71 cm Really Useful box will poke out from under a small double; the 60 cm Wham and Lifewit sizes fit almost any bed.
  3. Rigid or soft. Boxes protect from dust and knocks and stack; bags fold away, weigh nothing and fit lower gaps. Bedding and clothes are happy in bags; shoes, paperwork and anything you want to stack are not.
  4. How it moves. Sliders (Wham Crystal) for boards and laminate, wheels (Wham wheeled) for carpet, handles (Lifewit, SONGMICS) for one-handed pulls, nothing (Really Useful) for boxes that stay put.
  5. Count what you need. Sets of five are sized for a double bed’s width and length; a single bed with one thing to store is better served by one 50-litre box or a pair of bags.

Who should not buy under-bed storage

A divan with drawers already is the under-bed storage; an ottoman bed lifts to reveal the whole base; neither leaves a gap for anything here. A bed on a solid low base with 10 cm of clearance is the same story — vacuum bags might squeeze in, but a shelf or a wardrobe organiser will serve you better. And if the bedroom is damp, keep fabric and cardboard-stiffened bags out of it; the sealed plastic boxes are the only sensible choice.

Which one, by situation

  • You want a set of low boxes that will last years: Wham Crystal 32 L on sliders — once you have confirmed whether the pack is five or ten.
  • You reach under the bed every week and the floor is carpeted: Wham 32 L wheeled with the split lid.
  • You want one strong box for coats and bedding and the bed is high enough: Really Useful 50 L.
  • The gap is only 15 cm: SONGMICS drawers or Lifewit bags — SONGMICS for the lid and divider, Lifewit for the handles and lighter weight.
  • The problem is a spare duvet: Spacesaver vacuum bags, and nothing else on this page.

Sources

Facts checked 23 September 2026

  1. What More UK (Wham) — Crystal 32L U/bed Box & Lid, product code 10860 — Manufacturer documentation, checked 23 September 2026
  2. Amazon.co.uk listing (Wham) — Retailer listing, checked 23 September 2026
  3. What More UK (Wham) — 32L Box with Wheels & Folding Lid, Clear/Cool Grey, product code 15355 — Manufacturer documentation, checked 23 September 2026
  4. Amazon.co.uk listing (Wham) — Retailer listing, checked 23 September 2026
  5. Really Useful Products — 50 litre Really Useful Box — Manufacturer documentation, checked 23 September 2026
  6. Amazon.co.uk listing (Really Useful Box) — Retailer listing, checked 23 September 2026
  7. Amazon.co.uk listing (SONGMICS) — Retailer listing, checked 23 September 2026
  8. Amazon.co.uk listing (Lifewit) — Retailer listing, checked 23 September 2026
  9. Amazon.co.uk listing (Spacesaver) — Retailer listing, checked 23 September 2026
How much clearance do I need under the bed for storage boxes?

Measure from the floor to the lowest part of the frame or slats, then subtract 2–3 cm so the box slides rather than scrapes. The boxes here need 18 cm (Wham Crystal), 18.5 cm plus wheels (Wham wheeled) or 23 cm (Really Useful 50 L); the fabric bags need 15 cm; vacuum bags need whatever their contents compress to.

Do storage boxes fit under a divan bed?

Only if the divan has no drawers and sits on legs or a raised base with a real gap. A divan on castors with a solid base, or one with drawers on both sides, leaves nothing usable — the answer there is the wardrobe, not the bed.

Are wheels worth it on an under-bed box?

On carpet, yes: a full 32-litre box on sliders drags, while the wheeled Wham rolls. On laminate or boards the sliders are fine, and the slider version is half a centimetre lower, which can be the difference on a low frame.

Are vacuum storage bags worth it for duvets?

For a spare duvet or winter bedding that you touch once or twice a year, yes — they flatten what no box can hold. They are wrong for anything you use weekly, and down or feather fillings should not stay compressed for months; check the care label.