A dining room works when the table is chosen first and everything else is measured from it. The table decides how many people sit comfortably, where people walk, how large the rug must be, where the light hangs and how much wall is left for storage.
Below are the working numbers interior architects commonly use, with the reasoning behind each one, so you can check a floor plan before choosing anything from our dining table collection.
Start with the table and the number of seats
Allow about 60 cm of table edge per person for a standard chair, and 65–70 cm for wider upholstered chairs or chairs with arms. A common rule for rectangular tables:
- 6 people: 180–200 cm long, 90–100 cm wide
- 8 people: 220–240 cm long, around 100 cm wide
- 10 people: 260–300 cm long, 100–110 cm wide
Round tables suit smaller groups because everyone can talk to everyone: roughly 120 cm in diameter for four, 140–150 cm for six and 180 cm for eight. Beyond that, people across the table sit too far apart for one conversation. Width matters as much as length: under 90 cm, plates and serving dishes compete for space; over 110 cm, passing food across becomes awkward.
Look at the base as well as the top. Four corner legs fix the chair positions for you, while a pedestal base leaves the edge free, so an extra chair can be added without anyone sitting in front of a leg. With a sculptural base, as on the Ritmo dining table, check where the base meets the floor in relation to the chair positions.
Clearances around the table
Measure from the table edge, not from the chairs. A seated person with the chair pushed back needs about 75 cm. From there, a common guide is:
- 75–80 cm to a wall where nobody walks behind the chairs, which is the practical minimum.
- 90–100 cm where someone has to pass behind a seated guest.
- 110–120 cm on a main walkway or where food is carried from the kitchen.
In practice, a 220 cm table for eight needs a room of at least about 400 cm by 280 cm. If the room is tighter, a narrower or round table usually solves the problem better than removing chairs. Our post on how circulation patterns influence furniture placement shows how to map walking routes before placing large pieces.
Chairs: height, spacing and arms
Most dining tables are 74–76 cm high. Chairs work well with a seat height of 45–48 cm, which leaves 27–30 cm between the seat and the tabletop for legs and a relaxed elbow position. Leave 15–20 cm between neighbouring chairs so people can sit down and stand up without bumping into each other. Arms add comfort during long dinners, but check that they slide under the tabletop or apron; otherwise the chairs always stay pulled out and take up your clearance.
Upholstered chairs also soften the sound in a room with a stone or wood table and a hard floor. Our dining chairs include models such as the Bellini dining chair. At Sitdesign, upholstered pieces can be made in genuine leather or fabric, and customer's own material (COM) is accepted, so the chairs can match the sofas in an open-plan living area.
Rug size under the dining table
A rug that is too small is one of the most common dining room mistakes: the back legs of the chairs catch on its edge every time someone stands up. The rug should extend at least 60 cm, ideally 70–75 cm, beyond every edge of the table. For a 220 × 100 cm table that means a rug of roughly 360 × 240 cm. Choose a low pile or a flatweave so the chairs slide easily, and a colour or pattern that forgives crumbs. If the room cannot take a rug of that size, a bare floor looks calmer than an undersized rug.
Lighting above the table
Hang a pendant so its lower edge sits about 70–85 cm above the tabletop: low enough to light the table and keep glare out of people's eyes, high enough not to block the view across. As a guide:
- A single pendant should be roughly half to two-thirds of the table width in diameter.
- Long tables suit a linear fitting, or two or three pendants spaced 60–80 cm apart that stop at least 30 cm in from each end of the table.
- Centre the light on the table, not on the room; if the table position is not fixed yet, place the ceiling outlet after the furniture layout.
Put the pendant on a dimmer and use warm light of around 2700 K. Add a second layer, such as a wall light or a lamp on the sideboard, so the room does not depend on one bright point.
Where the sideboard goes
The sideboard is the working surface of a dining room, for serving dishes, glasses and table linen. Place it on a long wall parallel to the table where possible, and keep 110–120 cm between the table edge and the sideboard front so someone can serve while guests are seated. Typical sideboards are 45–50 cm deep and 75–90 cm high; a height close to that of the table makes serving easier. For proportion, a sideboard about two-thirds to three-quarters of the table length, centred on the same axis, usually looks settled. Hinged doors and drawers also need 40–50 cm of free space in front of them. The Lavor sideboard shares its name with the Lavor dining table, so the two can be planned as a pair.
Every Sitdesign piece is handmade in our own factory in Büyükçekmece, Istanbul, and custom dimensions are available on request. Upholstered pieces take 3–4 weeks and wood pieces 6–8 weeks. Send us your room measurements and the number of seats you need through our contact page to ask for leather samples for the chairs and a quote.
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