Furniture Fit Calculator
Check if a sofa, bed, table, or appliance will fit in your room and through the doorway — before you buy.
Enter room and furniture dimensions
Room space breakdown
Why "will it fit?" is worth answering before you buy
Furniture returns are expensive, inconvenient, and often impossible — delivery fees, restocking charges, and in some cases a piece that simply cannot be sent back. Yet most furniture purchases are still made with only a rough sense of whether the item will actually fit the room. The dimensions are on the product page, the room is standing there empty, and somehow those two sets of numbers don't get compared before the order is placed.
The result is familiar to anyone who has ever wrestled a sofa through a hallway: the piece fits the room but not the door, or fits the door but not around the corner, or technically fits but leaves no walking space. A furniture fit calculator removes all of that guesswork. It compares the furniture's dimensions to the room's dimensions and to the doorway, then tells you in plain language whether the piece will work — and if not, exactly how much you're short.
Below we'll walk through how the calculator works, what "clearance" actually means in practice, and how to handle tricky scenarios like L-shaped rooms, narrow doorways, and reclining pieces.
How the furniture fit calculator works
The calculator checks two things: whether the furniture fits in the room, and whether it can actually get there.
- Unit — the measurement unit used for all inputs (cm, in, m, ft).
- Required clearance — the space to leave around the furniture on all sides.
- Room length, width, height — the room's interior dimensions.
- Furniture length, depth, height — the piece's dimensions.
- Doorway width and height — the narrowest point the piece must pass through.
The calculations:
- Free space along length = room length − furniture length − (2 × clearance).
- Free space along width = room width − furniture depth − (2 × clearance).
- Free space above = room height − furniture height.
- Doorway clearance = door width − min(furniture depth, furniture height).
- Furniture footprint = furniture length × furniture depth.
- Floor space used = footprint ÷ room area × 100%.
If all four values are positive, the furniture fits. If any is negative, the piece is short by that amount in that direction. The status indicator turns green, amber, or red accordingly.
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A worked example: a 3-seat sofa in a 4 × 3.5 m room
Consider a 3-seat sofa that measures 220 × 95 × 85 cm (length × depth × height). The room is 400 × 350 × 270 cm. The doorway is a standard 80 × 203 cm. You want 5 cm of clearance.
- Length free: 400 − 220 − 10 = 170 cm
- Width free: 350 − 95 − 10 = 245 cm
- Height free: 270 − 85 = 185 cm
- Doorway clearance: 80 − 85 = −5 cm ⚠️
- Furniture footprint: 2.20 × 0.95 = 2.09 m²
- Room floor area: 4.00 × 3.50 = 14.00 m²
- Floor space used: 2.09 ÷ 14.00 = 14.9%
The sofa fits the room comfortably — it uses about 15% of the floor and leaves plenty of walking space. But the doorway is 5 cm too narrow for the sofa at its height. In practice this means the sofa has to be turned on its side, or the piece must be delivered in sections. This is a very common scenario: everything works in the room, but the doorway is the limiting factor.
Standard furniture dimensions
Knowing typical sizes helps you check fit before you have exact numbers. The table below shows common dimensions in centimetres and inches.
| Furniture | Typical size (L × D × H) |
|---|---|
| 2-seat sofa | 150–170 × 85–95 × 80–90 cm |
| 3-seat sofa | 200–230 × 90–100 × 80–95 cm |
| L-shaped sofa | 250–320 × 160–200 × 80–95 cm |
| Armchair | 80–90 × 80–90 × 80–90 cm |
| Coffee table | 100–130 × 50–70 × 40–45 cm |
| Dining table (4) | 120–140 × 80–90 × 75 cm |
| Dining table (6) | 160–180 × 90–100 × 75 cm |
| Double bed | 135–140 × 190–200 × 40–50 cm |
| King bed | 150–160 × 200–210 × 40–50 cm |
| Wardrobe | 120–250 × 60–65 × 180–250 cm |
| Bookshelf | 80–100 × 30–40 × 180–200 cm |
| Standard fridge | 60 × 65 × 170–180 cm |
| Washing machine | 60 × 60 × 85 cm |
| Bathroom vanity | 60–150 × 45–55 × 85 cm |
| Desk | 120–160 × 60–80 × 75 cm |
Always check the specific product's dimensions — "3-seat sofa" covers a huge range, and two models with the same name can differ by 30 cm.
How much clearance do you actually need?
Clearance is the difference between "it fits" and "it works in daily life." Here are practical minimums:
- Around a sofa — 5–10 cm behind, 10 cm on each side.
- Sofa to coffee table — 40–45 cm of walking space.
- Dining chairs to wall — 75–90 cm for chair pull-out and walking.
- Bed sides — 60 cm minimum on the open side for getting in and out.
- Bed to wardrobe — 60–75 cm to open the doors.
- Kitchen counters — 100–120 cm between parallel counters.
- Around a dining table — 60–75 cm for the table edge to the wall.
- Reclining sofas — 20 cm behind, 15 cm on each side.
When in doubt, add a few centimetres. Slight over-calculation is much cheaper than a piece that fits "in theory" but feels cramped every day.
The doorway problem
More furniture returns happen because of doorways than because of room size. The two critical numbers are:
- Doorway width — measure at the narrowest point, not at the frame's widest.
- Doorway height — from the floor to the top of the frame.
For an item to pass through, at least one of its cross-sectional dimensions must be smaller than the door opening. A 220 cm long sofa, for instance, only needs its 95 cm depth or 85 cm height to fit through an 80 cm door — and usually the sofa is turned onto its side to pass.
Additional complications:
- Inner corners — a hallway turn immediately after the doorway reduces usable space.
- Staircases — most sofas can be tipped but the turn at the top or bottom can be the limit.
- Elevators and corridors — in apartment buildings, the lift interior matters as much as the apartment door.
- Lifts with mirrors — they take 2–3 cm off the interior on each side.
- Doors that open inward — remove them before delivery to gain 3–5 cm.
A quick rule of thumb: if the piece is more than 40 cm wider than the door in either dimension, you'll likely need a removable-back or modular model.
Common furniture fit scenarios
| Scenario | Approach |
|---|---|
| Fits room, not doorway | Turn on side, remove legs, use a window, or pick a modular version |
| Fits both but tight | Reduce other furniture or accept less walking space |
| Too deep for room | Consider a slimmer depth model or a two-seat version |
| Doesn't reach ceiling | Not usually a problem — leave 60+ cm above for air and light |
| Blocks light from window | Move the piece, or choose a lower silhouette |
| Uses more than 35% of floor | Room will feel full — measure again and consider a smaller piece |
| Blocks doorway swing | Relocate or consider a pocket door |
| Cannot get up stairs | Modular or flat-pack furniture is the answer |
How much of your floor should furniture take?
There's no universal rule, but the following ranges work for most people:
- Under 25% — room feels airy, possibly sparse.
- 25–35% — comfortable and balanced for living rooms and bedrooms.
- 35–45% — feels full; still usable but fewer walking paths.
- Over 45% — cramped; circulation becomes difficult.
Small rooms often benefit from fewer but larger pieces rather than many small ones — fewer legs and surfaces make the space feel less cluttered.
What to do if the piece doesn't fit
- Remove the door. Taking a door off its hinges gains 3–5 cm in width, more if the frame is thick.
- Take off legs, arms, or backs. Many sofas have removable parts that reduce size significantly.
- Choose a modular version. Sectionals in 2–3 pieces will pass through almost any doorway.
- Use a window. For upper-floor apartments, a window may be wider than the stairwell.
- Order a slimmer model. Depth is usually the easiest dimension to reduce.
- Reconsider the room. A piece that fits may still make the room feel wrong — sometimes the right answer is a different room.
- Return early. If you haven't taken delivery, cancel before it ships.
Common fit mistakes
- Trusting the product page's "assembled dimensions" only. Check package dimensions too — many items ship flat.
- Forgetting the doorway. The single most common cause of returns.
- Forgetting the lift and corridor. In apartments, these matter as much as the front door.
- Using nominal room dimensions. Builders often quote external or nominal sizes; measure interior yourself.
- Ignoring clearance. "Fits" doesn't mean "usable."
- Not accounting for skirting boards. They reduce usable wall space by 1–2 cm.
- Assuming you'll move it later. A sofa that barely fits is very hard to reposition.
- Ordering before checking the return policy. Some furniture is final-sale.