Short answer: leave 90 cm between table edge and wall or furniture where people walk past seated diners, 75 cm where they only pull the chair out, and treat 60 cm as the absolute squeeze-against-a-wall minimum. A 90 cm-wide table therefore needs a room at least 240 cm wide (90 + 90 + 60) to seat people without gridlock.
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Get this wrong and every meal becomes a negotiation: chairs thudding the skirting board, diners trapped mid-soup, someone eating at a 45-degree angle. Clearance is unglamorous, but it's the difference between a dining room and a dining corridor.
The three clearance numbers
| Scenario | Clearance needed | What it buys you |
|---|---|---|
| Walk past a seated diner | 90 cm | Chair out + one person sidling through |
| Pull chair out and sit | 75 cm | Chair depth (45–50 cm) + sitting room |
| Absolute minimum | 60 cm | Chair squeezes out — no passage |
Room size vs table size
| Room (wall to wall) | Fits a table | Seats comfortably |
|---|---|---|
| 240 × 240 cm | 90 × 90 cm square | 4 |
| 270 × 270 cm | 90 × 150 cm rectangle | 6 |
| 300 × 300 cm | 90 × 160–180 cm | 6–8 |
| 340 × 300 cm | 100 × 200 cm | 8 |
The chair is part of the table
A dining chair is 45–50 cm deep and needs roughly 50 cm of pulled-out travel to slide in without a wrestling match. That's why the difference between 75 and 90 cm matters: the extra 15 cm is a person walking behind. Skip it and the seated diner becomes a toll booth — everyone pays a hip-check on the way to the kitchen.
Corner tricks for tight rooms
- Bench on one side: tucks fully under the table, reclaiming 20–30 cm of clearance.
- Round table: no corners to clip, easier traffic flow in a 240 cm room — but seats fewer per square metre.
- Window-side placement: dropping the 90 cm walkway on the window side (nobody walks there) and keeping 90 cm only on the door side reclaims up to 30 cm of room width.
Quick measurement ritual
Tape a newspaper rectangle the size of your dream table plus 75 cm on the two long sides. Live with it for a day. If you get sick of stepping over newsprint, imagine it's a table you can't return. Cheap insurance, and you can still read the paper afterwards.
What about pendant lights and sideboards?
Clearance isn't only horizontal. Hang pendants 75–80 cm above the tabletop — low enough to flatter the food, high enough not to toast your uncle's head when he stands. A sideboard behind the walkway side should sit at least 90 cm from the table edge too, because its drawers swing out 40–45 cm and don't care about your geometry plans.
What about pendant lights and sideboards?
Clearance isn't only horizontal. Hang pendants 75–80 cm above the tabletop — low enough to flatter the food, high enough not to toast your uncle's head when he stands. A sideboard behind the walkway side should sit at least 90 cm from the table edge too, because its drawers swing out 40–45 cm and don't care about your geometry plans.
If the table shares space with a doorway, keep 100 cm between table edge and door swing. Nothing announces a cramped dining room like eating in draft-weather with the front door wind chilling your soup.
Keep reading
More dimension guides are in the collection, and the full index is on the furnolio journal.
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