Short answer: yes — if both machines are front-loaders and you buy the manufacturer's stacking kit. A stacked pair occupies the same 60 × 60 cm footprint as one machine, which is how half of Europe fits laundry into a cupboard the size of a wardrobe. Never stack a top-loader (the lid needs to swing open, so it is always the bottom machine, and nothing sits on it), and never stack bare — dryers walk during spin cycles, and an unkit-ed dryer on a washer is a 60 kg vibration experiment with your skirting board as the crash barrier.
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The stacking kit is not optional
A proper kit (£20–40, sold by the machine maker for your model family) does two things: locks the two machines together so the dryer cannot walk, and provides a pull-out shelf or step so laundry can actually be loaded at chest height. Third-party universal kits exist but check the weight rating — the dryer alone is 50–70 kg, and the kit carries all of it plus a 7 kg wet load thumping at 1,400 rpm. Machines from different brands can usually still stack with a universal kit, but you void the easy answer and take the fit-risk yourself.
Weight and floor: what the stack really loads
| Item | Weight |
|---|---|
| Front-load washer | 60–75 kg |
| Condenser or heat-pump dryer | 45–65 kg |
| Wet load mid-spin (added) | +8–10 kg |
| Stacked total, worst case | 140–150 kg on 0.36 m² |
That is roughly 400 kg per square metre — fine on a concrete slab, fine on standard timber joists at 400 mm centres, and genuinely marginal on old floors with long unsupported spans. If the washing machine already makes the floor drumroll upstairs, stacking doubles the orchestra. A plywood spreader plate under the pair (18 mm, screwed to the floor) distributes the load and calms most timber-floor drama.
The clearances that get forgotten
Stacked or not, machines need room to breathe and be serviced. Behind: 10 cm minimum for hoses and the dryer's exhaust path. At the front: 80 cm of working space so the door opens fully — a front-loader door needs 90–110 cm of swing, and you need to crouch in front of it with a washing basket. Above: 15–25 cm so the top machine's controls are reachable and heat can escape. And measure the door route: a 60 × 85 cm machine turns corners badly, and a stacked pair cannot be carried — you install bottom machine, then top, in the room, in that order.
When stacking is the wrong answer
If you wash more than 8–9 kg loads regularly, the stack caps you at the smaller machine's drum. If anyone in the house struggles with lifting wet laundry overhead — the top machine's drum sits at 120–150 cm in a stack — the ergonomic answer is side by side, or washer on the bottom with a counter-depth dryer swap. And if the machines are mismatched sizes (60 cm washer, 45 cm compact dryer), stacking kits exist per size class but mixing them is where wobble lives. Get the kit, respect the clearances, and the stack is the single best space-saving move in a small flat — done wrong, it is the loudest.
Vibration: the number that decides the neighbourhood
A dryer in mid-spin shakes at 800–1,400 rpm, and a stacked pair transmits all of it into the floor. On concrete: a low hum, case closed. On timber joists: the stack can amplify into a bass note that the flat below hears as a departing train, every wash day. Mitigation in order of effectiveness: anti-vibration feet or pads under the bottom machine (£10–15, cuts transmitted vibration by a noticeable margin), the plywood spreader plate, and — the free one — level both machines with a spirit level until the drum sits dead level, because an unlevel machine walks and thumps regardless of what sits under it. If the flat below has already complained about the single washer, stacking will not improve diplomacy.
Keep reading
More dimension guides are in the collection, and the full index is on the furnolio journal.
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