SONGMICS
SONGMICS Adjustable Dumbbell Set 20 kg
20 kg that lives in a box
£28.99 £29.99 -3 %Guide price, checked on 12 September 2026
Twenty kilos of plates and three bars that make two 10 kg dumbbells or one 20 kg barbell, and go back in a box under the bed. 2,411 ratings averaging 4.4.
Disclosure: Abatible takes part in the Amazon Associates Programme. If you buy through our links we may earn a commission, at no extra cost to you. The scores do not depend on that commission. More detail.
How much room it really takes
Everything at the same scale, with a 1 m² square behind it so you can picture it properly.
Our assessment
Editor's score from 0 to 10 on seven criteria. These are not the manufacturer's figures: they are our judgement, and we explain how we work them out in how we choose.
- Space efficiency*7.6
- Capacity—
- Real ratings7.0
- Value for money10.0
- Build quality6.0
- Ease of use8.0
- Design5.0
Worked out with an absolute anchor Editorial judgement
* The manufacturer does not publish a reliable folded measurement for this model, so space efficiency is worked out from what we do know: how compact it is open and what it weighs. How we score.
We could not score «capacity» because the manufacturer does not publish the figures needed. That axis shows as zero on the chart: it is a declared gap, not a low score.
Full technical details
Figures the manufacturer does not publish appear as «—». We would rather leave a gap than fill it with an invented number.
| Unfolded measurements | |
|---|---|
| Width | 21.5 cm |
| Depth | 94 cm |
| Height | Not published by the manufacturer |
| Usable surface | 2,021 cm² |
| Folded measurements | |
| Folded width | Not published by the manufacturer |
| Folded thickness | Not published by the manufacturer |
| Folded height | Not published by the manufacturer |
| Floor taken when stored | Not published by the manufacturer |
| Floor it still takes | Not published by the manufacturer |
| Weight and strength | |
| Weight | 20 kg |
| Maximum load | Not published by the manufacturer |
| Interior storage | Not published by the manufacturer |
| Shelves | Not published by the manufacturer |
| Drawers | Not published by the manufacturer |
| Linear metres of shelving | Not published by the manufacturer |
| Total shelf area | Not published by the manufacturer |
| Materials and assembly | |
|---|---|
| Surface | Plastic coating |
| Frame | Steel |
| Finish | Ink black |
| Needs assembly | No |
| Assembly time | Not published by the manufacturer |
| Mechanism | dismantles |
| Portability | lightweight |
| Warranty | Not published by the manufacturer |
| Other details | |
| Total weight | 20 kg |
| Plates | 4 x 2.5 kg, 4 x 1.25 kg, 4 x 1 kg |
| Bars | Two dumbbell bars and one barbell bar |
| Filling | Concrete and sand under a plastic coating |
The analysis
If you can only buy one thing for a small flat, this is usually it. Twenty kilos of plates and three bars cover most of what a beginner needs, and between sessions the whole lot goes in a box under a bed. Nothing else in home training disappears that completely.
The set makes two 10 kg dumbbells or one 20 kg barbell, and the plates come in 2.5, 1.25 and 1 kg, so the steps between weights are small enough to progress rather than jump.
Be clear about the material: concrete and sand under a plastic coating, not cast iron. That is why it costs what it costs. It is also why the coating chips if you drop it on a hard floor, which is what the lower reviews are about.
And 20 kg is a ceiling. For a beginner it is months of training; for anyone already lifting it is a warm-up. Buy it to find out whether you will train at home, not to keep training at home for ever.
In favour
- Two 10 kg dumbbells or one 20 kg barbell from the same set
- Plates in three sizes, so the jumps are small
- Goes back in a box: no rack, no stand, no floor
- 2,411 ratings averaging 4.4
Against
- Concrete and sand under plastic, not cast iron
- 20 kg is a ceiling: there is nowhere to go from here
- Changing the weight means unscrewing spinlocks, not a dial
Best for: A flat with no room for a rack, where the training has to disappear between sessions.
What the people who bought it say
Across 2,411 ratings the average is 4.4. Buyers mention the price and the range of plates. The complaints are about the plastic coating chipping and about the spinlocks working loose in use.
Reviews published by buyers on Amazon, reproduced as they are. We do not edit them or pick them by rating.
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The guide for this section
Compact exercise equipment
Building a home gym when there is not a spare metre
Where to start, what each machine really takes up, and why the right buying order is the opposite of what it looks like.
SONGMICS Adjustable Dumbbell Set 20 kg
£28.99 £29.99 -3 %Guide price, checked on 12 September 2026
Disclosure: Abatible takes part in the Amazon Associates Programme. If you buy through our links we may earn a commission, at no extra cost to you. The scores do not depend on that commission. More detail.