Washer, dryer, and the room around them.

The machines

Depth honesty: 32″ is the BOX — hoses and venting want 4–6″ more behind. A 36″-deep alcove is the real number.

The room around them

• Work zone: 36–48″ in front of the machines — a laundry basket, an open door, and you.
• Side-by-side closet: 60″ wide minimum inside the doors, 36″ deep counting hookups.
• Stacked closet: 30″ wide, 36″ deep — and check the tower height (~76″) against shelving.
• Pedestals add 12–15″ of height and a drawer each — worth it at standard depth, impossible under a counter.
• Door logic: washer doors hinge left, dryer doors reversible — set them to swing AWAY from the transfer path on the plan.
• Dryer venting wants the shortest straight run to outside air — a laundry moved to the middle of the house pays for it in duct.

Room sizes, honestly

Minimums are minimums — closets, windows, and the door swing decide the real answer on your plan, which is where these stencils earn their keep.

The alcove, inch by inch

A side-by-side pair is 27″ each, so 54″ of machine — but the number to build to is 55–58″. You cannot butt two front-loaders together: levelling feet need to move, hoses need to turn, and a washer on spin needs somewhere to put its vibration that is not the dryer's cabinet.

Depth is where the plans lie. The published 32″ is the box. Behind it live the water supply valves, the drain standpipe and — the big one — the dryer's vent elbow. A conventional 4″ elbow needs several inches; a periscope fitting gets the machine much closer to the wall. Plan a 36″-deep alcove and verify against the install sheet for the actual machine and the actual fitting, because the number is set by the hardware rather than by the appliance.

Worked: the 60 × 36″ side-by-side closet. 55″ of machine in a 60″ opening leaves 5″ of slack — enough. 32″ of box plus 4″ for the vent is 36″ of depth, exactly, with nothing spare. The 36–48″ work zone in front is not in the closet at all; it comes out of the hallway. That works, provided the closet doors are bifold or bypass. Hang a swinging slab there and its arc occupies the same air the laundry basket needs — the doors and the work zone are competing for one piece of floor.

The door swing nobody draws. A front-loader's door is roughly 24″ across and hinges on one side; washers are usually fixed and dryer doors are usually reversible. Set them to open away from each other and the transfer path is two feet. Set them wrong in a 60″ closet and you cannot stand between the machines to move a load.

The services decide the plan more than the plan does

• Venting wants the shortest, straightest run to outside air. Every dryer's installation sheet publishes a maximum equivalent duct length, and every elbow subtracts from it — the numbers differ by model, so read yours. A laundry moved to the middle of the house pays for that move in duct, and a long lint-laden run is a maintenance problem as well as a performance one.
• Electric dryers want a dedicated 240-volt circuit; gas dryers want a gas line and still need power. This is electrician-and-code territory rather than layout territory, and it is worth marking on the plan early — the outlet's position decides how far the machine can sit from the wall.
• Top-loaders cannot stack and cannot take a shelf. The lid swings up, so the wall above them has to stay clear to something like full standing height. That single fact rules out most closet installations.
• Pedestals add 12–15″ of height and a drawer each. They make a front-loader genuinely more pleasant to use and they make it impossible to put a folding counter over the machines — pick one.
• A stacked tower is about 76″ tall. Check that against the shelf you were planning and against the ceiling of a closet under a stair, which is where towers usually end up.
• Upstairs laundries want a drain pan. Whether one is required is a local question; whether you want one is not.

Common questions

What size does a laundry room need to be?

A stacked closet works at 30 by 36 inches and holds nothing else. A side-by-side closet needs 60 by 36. A small laundry room at 6 by 8 feet takes the machines plus a folding counter; a full laundry or mudroom at 8 by 10 adds a sink, a drying rod and a storage wall. In every case the work zone in front — 36 to 48 inches — has to come from somewhere, even if that somewhere is the hallway.

How much space do you need for a washer and dryer side by side?

Plan 55 to 58 inches of wall for a standard pair. The machines are 27 inches each, so 54 inches is the bare metal, but you cannot butt them together: levelling feet need to move, hoses need to turn, and a washer on spin needs somewhere to put its vibration that is not the dryer's cabinet. Depth wants 36 inches counting the hookups behind.

How deep does a laundry closet need to be?

Thirty-six inches. The published machine depth of about 32 inches is the box only — behind it sit the water valves, the drain standpipe and the dryer's vent elbow, and a conventional 4-inch elbow needs real room. A periscope vent fitting gets a dryer much closer to the wall. Verify against the installation sheet for your actual machine and fitting, because the depth is set by the hardware.

Can you stack any washer and dryer?

No — stacking is front-load only, and only with the manufacturer's own stacking kit for that pair. A top-load washer's lid swings up, so it cannot take a dryer or even a shelf above it, which is what rules top-loaders out of most closet installations. A stacked tower is about 76 inches tall; check that against the closet ceiling, which is often under a stair.

How much space do you need in front of a washer and dryer?

Thirty-six to 48 inches. That is an open machine door — roughly 24 inches of it — plus a laundry basket plus you, and it is the difference between transferring a load and wrestling one. In a closet installation that zone comes out of the hallway, which is fine as long as the closet doors are bifold or bypass rather than a swinging slab occupying the same floor.

Pieces that fit

Every row is a size this guide just settled, handed to the merchants as a search. It is the same dimension-seeded lookup Poché runs from a footprint on your plan — no product is being recommended here, only a size.

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