Will the couch fit through the door?

The openings

Measure the actual clear opening — jamb to jamb with the door open. Pulling a door off its hinges buys back another 1½–2″; the hinge-side trim is the true edge.

The tilt trick — why 38 > 32 sometimes works

A sofa doesn't walk in flat; it comes in tilted on end. Once vertical, the number that has to clear the opening is closer to the sofa's depth-by-height diagonal profile than its full depth — arms taper, seat cushions compress, and backs rake. That's how a 38″-deep sofa gets through a 32″ door: on its end, with a rotation at the threshold.

• Comfortably clears flat: depth < opening. No drama.
• Tilt territory: depth up to ~1.2× the opening — possible with the end-tilt if the hallway allows the rotation. This is where the verdicts say verify, because upholstery and arm shape decide.
• Physics has voted: a rigid piece much past that isn't coming through — it's coming apart, or it's going back.

Sectionals are the loophole: they arrive as separate pieces, each one narrower than the assembled whole. The 120″ U-shape that could never enter as one object walks in as three easy boxes. Sleepers are the opposite trap — the mechanism makes them rigid and heavy.

The three measurements that decide it

• The listed size is the assembled size. The BOX is bigger — when a vendor publishes carton dimensions, those are the numbers that meet your doorway. When they don't, the listing's "verify delivery" advice is doing a lot of work.
• The path, not just the door: a 36″ front door feeding an immediate 90° turn into a 36″ hallway is tighter than either number — the turn is a diagonal problem. Same for stair landings.
• Elevators are boxes too: cab depth and door width beat apartment-floor math every time.

A worked delivery: 84 × 38 sofa, 30″ door

Take the American default — an 84″ sofa, 38″ deep — and the commonest interior door in the country, a 2′-6″. Work it in order:

So the honest verdict is verify, and measure the sofa rather than the listing. A listed depth is a bounding box — measured to whatever protrudes furthest, usually the top of a raked back or a rolled arm. What has to pass through the frame is the sofa's narrowest cross-section, and on many frames that is the base. Strip the cushions, measure the frame foot to back at its slimmest, and use that. The 1.2× band is our working rule for when a tilt is worth attempting — it is not a published standard, which is why the app says verify here instead of yes.

The corner is a harder problem than the door

A doorway is one number. A right-angle turn between two hallways is a geometry problem, and it is the one that strands sofas on landings.

The idealised version has a clean answer: a rigid rod of zero thickness turning a right angle between corridors of widths a and b can be at most (a^2/3 + b^2/3)^3/2 long. Two 36″ hallways meeting at 90° therefore pass a flat board about 101″ — eight and a half feet, comfortably more than an 84″ sofa. That sounds like good news until you remember the rod has no depth. A sofa is 38″ deep, and depth eats into that ceiling fast; the practical answer at a real corner is almost always stand it on end first, so the piece turns about its short axis rather than its long one.

• Measure the corner, not the halls. The useful number is the diagonal from the inside corner of the turn to the far wall.
• Handrails and newel posts are the real width. A stair with a rail is 3–4″ narrower than the framing says, and the newel at the bottom is an immovable object.
• Headroom pinches on stairs over the nosing and again under a landing soffit. Both are code minimums in the IRC, both are amended locally, and neither is generous — measure yours.
• Elevators are boxes with two constraints: the door width and the cab depth. The cab usually wins the argument, and a sofa that will not stand upright inside it is not going up.

Common questions

Will a sofa fit through a 30-inch door?

A 30-inch door gives about 28 inches of clear opening, so a sofa whose depth is under 28 walks in flat with no drama. Past that you are into tilt territory: stood on end, many sofas clear an opening a good deal narrower than their listed depth, because the listed figure is measured to the outermost point of the back and the frame at the base is narrower. Our working rule is that depth up to roughly 1.2 times the opening is worth attempting — a rule of ours, not a published standard, and one that says verify.

How do you measure a doorway for a sofa?

Open the door fully and measure jamb to jamb at the narrowest point — usually the face of the open slab to the opposite stop, not the nominal door size. Then measure the height the same way, and the depth of the doorway itself, since a thick wall makes the passage a tunnel rather than a plane. Finally measure the space on both sides: you need somewhere to stand the sofa on end before it goes through.

Can you take a door off its hinges to move a sofa?

Yes, and it is the cheapest trick in moving — lifting the slab off its pins buys back roughly 1½ to 2 inches, which is often the whole margin. Tap the hinge pins up from below with a nail and a hammer; painted-over pins are the usual hold-up. The stop moulding can come off too for another fraction, but that is trim carpentry and it goes back on visibly, so try the door first.

Why does a sofa's listed depth overstate the problem?

Because the listed depth is a bounding box — it is measured to whatever sticks out furthest, usually the top of a raked back or a rolled arm. Stood on end and pushed through, what actually has to pass is the sofa's narrowest cross-section, which is frequently the frame at the base. Cushions come off, arms taper, and upholstery compresses. This is exactly the case where an honest tool says verify rather than yes.

Will a sectional fit through a narrow door?

Usually, and more easily than a straight sofa. Sectionals arrive as separate pieces, each narrower than the assembled whole, so a 120-inch U-shape that could never enter as one object walks in as three manageable boxes. Sleeper sofas are the opposite trap: the fold-out mechanism makes them rigid, heavy, and unable to flex through a tight turn. Check the carton dimensions per piece, not the assembled footprint.

Do it once, on the plan

Poché's doorway tool marks every opening on your floor plan once — then every piece you place or shop gets a delivery verdict against your actual doors. When the vendor publishes carton dimensions, the verdict is asserted from those; when it's estimating from the footprint, it says so plainly and tells you to verify. Honesty is the feature: a confident wrong answer costs you a restocking fee.