Washer-Dryer Combo Dimensions: No Vent Needed
An all-in-one combo is 24 inches wide compact, 27 inches full-size, or 20 to 24 inches portable, and the compact class is 33 to 34 inches tall so it slides under a standard counter. The reason people buy one is not in the table: it condenses drying moisture into the drain, so there is no vent duct at all.
How big is an all-in-one washer-dryer combo?#
An all-in-one washer-dryer combo is 24 inches wide as a compact ventless machine, 27 inches full-size, or 20 to 24 inches in the portable class. Read as a size table it looks like a smaller laundry pair; it is not. One drum does both cycles in sequence, and the drying half condenses its moisture into the drain rather than pushing it through a duct — which is what makes this class fit rooms that could never take a vented dryer. The table below is what that changes about the opening you already have.
All-in-one washer-dryer combo dimensions by configuration#
| Configuration | Width (in) | Height (in) | Depth (in) | Best for |
|---|---|---|---|---|
| Compact ventless (24-inch) | 24 | 33–34 | 23–26 | condos and apartments with no vent |
| Full-size (27-inch) | 27 | 39 | 30–33 | a house wanting one machine |
| Portable all-in-one | 20–24 | 34–36 | 22–24 | renters who wheel it to the sink |
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Bearing puller set ($120), drum spider wrench ($85), multimeter ($85), and diagnostic software. Our technician arrives with $3,000+ in professional tools — your diagnostic is free.
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What a single ventless machine changes about your laundry opening#
Compare against the laundry arrangement you have now, not against a pair of machines you were going to buy.
| What you have now | What the combo needs | What changes |
|---|---|---|
| A vented dryer duct through the wall | Nothing — a ventless combo never uses it | The duct becomes redundant: drying moisture condenses into the drain instead, and that is the whole argument for this class |
| A counter over the laundry space | A compact combo at 33 to 34 in tall | It slides under a standard counter at 34 in; the full-size machine at 39 in does not, whatever the width allows |
| A stacked pair in a closet | One machine in one opening | You get the height back and give up washing and drying at the same time — a combo runs the two cycles in sequence, in one drum |
| An alcove no deeper than the machine (22–33 in) | 4 to 6 in behind it | The fill hoses and the drain still need that room, ventless or not |
| A rented flat with no laundry plumbing | The portable class (20–24 in wide) | It wheels to the sink and back at 34 to 36 in tall — the one class here that needs no permanent connection at all |
Three configurations are counted above, and each is one machine doing two jobs in sequence. The ventless behaviour that defines the class does not appear as a dimension anywhere, which is why the table alone makes a combo look like a small laundry pair rather than a different kind of appliance.
Installation clearances for an all-in-one washer-dryer combo#
- Rear clearance: 4–6 in in behind an all-in-one washer-dryer combo for the fill hoses and drain.
- Ventless install: A ventless washer-dryer combo condenses drying moisture into the drain, so it needs no exterior vent duct.
- Door swing: 22–24 in in of front space the front-loading door of a washer-dryer combo needs to open.
- Under-counter height: 34 in in tall for a compact washer-dryer combo to slide under a standard countertop.
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Will your all-in-one washer-dryer combo fit? Clearances and door swing#
A combo's appeal is that it fits where a stacked pair cannot — a compact ventless model is 33 to 34 inches tall and slides under a standard counter at that 34-inch height. The door swings 22 to 24 inches out, so keep that clear, and allow 4 to 6 inches behind for the water hoses and drain. Because a ventless combo condenses moisture internally, it needs no exterior duct and can live in a sealed closet. Measure the opening width — 24 inches for a compact, 27 inches for a full-size — along with the under-counter height, and confirm the front has room for the door.
All-in-one washer-dryer combo sizes by type: compact ventless (24-inch), full-size (27-inch), portable all-in-one#
The three combo styles fit different homes. A compact ventless combo, 24 inches wide and 33 to 34 inches tall at 23 to 26 inches deep, needs no duct and tucks under a counter — the top pick for an apartment. A full-size combo, 27 inches wide and 39 inches tall at 30 to 33 inches deep, handles larger loads while still doing both jobs in one drum. A portable all-in-one, 20 to 24 inches wide and 34 to 36 inches tall, rolls to the sink on casters for a rental with no hookups. All three need 4 to 6 inches of rear clearance and a 22-to-24-inch door swing.
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