The most common furniture delivery problem is not a damaged sofa. It is a sofa that will not fit through the door. In the Boston area, with narrow triple-decker stairwells, tight turns in older colonials and condo buildings with small elevators, it happens more than people think. Ten minutes with a tape measure before you order saves a lot of stress on delivery day. Here is exactly what to measure and how to read the numbers.
What you need
- A metal tape measure (at least 25 feet).
- Your phone, to take photos and note numbers.
- The product dimensions: width, depth, height, and if listed, the diagonal depth.
Measure every opening on the path, from the curb or parking spot to the room where the piece will live. The smallest opening decides whether it fits.
Step 1: Measure every doorway
Open the door fully and measure the width between the door stops (the thin strips of wood the door closes against), not the full frame. Then measure the height. A standard interior door is often around 30 to 32 inches wide once you account for the stops, and older homes can be narrower. Exterior doors are usually wider, but storm doors can take away 2 to 3 inches.
Write down the smallest door on the route, including the front door, any vestibule door, the apartment door and the room door.
Step 2: Measure hallways and turns
Measure hallway width at its narrowest point, including radiators, railings, light switches and trim. Then look at corners. A 90 degree turn from a hallway into a doorway is where most sofas get stuck, because the piece has to pivot. If the hallway is narrow and the door sits right at the corner, a long sofa may not make the turn even if both openings are wider than the sofa is deep.
Step 3: Measure stairwells
Stairs are the biggest challenge in triple-deckers and older multi-family homes. Measure:
- Stair width, from wall to handrail (not wall to wall).
- Ceiling clearance at the lowest point, often where the stairs pass under a landing or beam.
- Landing size, length and width, where the stairs turn.
A sofa going up stairs is carried at an angle, so it needs height as well as width. A tight landing with a low ceiling is the classic spot where a sofa cannot turn. Take a photo of each landing from the bottom step and the top step.
Step 4: Understand diagonal depth
Diagonal depth is the number that decides most tight fits. Movers often tip a sofa on its back and slide it through the door, so what has to clear the opening is the diagonal, not the full depth.
To measure it on a sofa you are considering: stand a straightedge from the top of the back to the front edge of the seat. Measure from the bottom back corner of the sofa to the midpoint of that straightedge. That is the diagonal depth. If the diagonal depth is smaller than your door width, the sofa can usually go through tipped on its back, as long as the door is taller than the sofa is long, or the hallway lets you angle it.
Ask us for this measurement if it is not listed. We can take it on the floor model.
Step 5: Apartment and condo buildings
Elevators are often the tightest spot in a Boston or North Shore building. Measure the elevator door width and height, the inside cab depth, width and height, and the diagonal from a bottom front corner to the top back corner. A tall sofa can sometimes stand on end inside the cab, but only if the height allows it.
Also check building rules. Many buildings require delivery reservations, elevator pads or a certificate of insurance from the delivery company. Call your property manager before you order and ask what they need.
Tricks that make a big piece fit
- Remove the legs. Many sofas and sectionals have screw-off legs, which can take off 4 to 6 inches of height.
- Take the door off its hinges. Pulling the hinge pins can add an inch or two of clearance. Remove storm doors too.
- Choose a sectional. A sectional arrives in pieces, so each section is smaller than a full sofa. This is often the best answer for third floor walk-ups.
- Look at detachable backs or arms. Some sofas and recliners have backs that lift off, which reduces depth.
- Consider a loveseat plus chair. Two smaller pieces can seat as many people as one long sofa and fit through tight spaces more easily. See our loveseats.
What to tell the store before you order
Give the sales team the whole picture, not just the room size:
- The narrowest door width and height on the path.
- Hallway width and any tight turns.
- Stair width, ceiling clearance and landing size, with photos.
- Which floor the room is on, and whether there is an elevator.
- Building rules for deliveries, if you live in an apartment or condo.
- Anything unusual: a spiral staircase, a narrow porch, a low basement ceiling.
As our FAQ page notes, our team can check your measurements against the product before you order. Send the numbers and photos to our WhatsApp at (508) 239-0502 or bring them to the showroom. For details on how delivery works, see our delivery and shipping page.
Frequently asked questions
How do I know if my sofa will fit through the door?
Compare the sofa's diagonal depth and height with your door width (measured between the door stops). If the diagonal depth is smaller than the door width, the sofa can usually go through tipped on its back. Also check hallways, turns and stairs on the way.
What is diagonal depth on a sofa?
It is the distance from the bottom back corner of the sofa to the midpoint of a line running from the top of the back to the front edge of the seat. It is the measurement that has to clear the door when movers tip the sofa on its back.
Can furniture delivery teams take doors off or remove sofa legs?
Many sofas have removable legs, and taking a door off its hinges can add clearance. Mention any tight spots when you order so the plan is clear before delivery day.
What is the best sofa for a third floor walk-up?
A sectional is often the easiest choice because it arrives in separate pieces. A loveseat plus an accent chair is another option. Share your stair measurements and photos and our team can suggest pieces that fit.
Can Sweet Home Furniture check my measurements before I buy?
Yes. Send your door, hallway, stair and elevator measurements with photos to our team in the showroom, by phone at (508) 872-4100 or on WhatsApp at (508) 239-0502, and we will check them against the piece before you order.
Bring your measurements to the showroom
Seeing a sofa in person makes the numbers real: you can measure the floor model, check the legs and ask about removable parts. Stop by our Framingham showroom at 145 Concord St or our Saugus showroom in Square One Mall, 1201 Broadway. We are open Monday to Saturday 10 am to 8 pm and open 7 days a week; see the store page for Sunday hours. Our team speaks English, Portuguese and Spanish.