What size dining table do you need?

For four people you need a dining table about 120 to 150 cm long, for six about 180 to 210 cm, and for eight about 240 to 270 cm, with 90 cm of clear floor on every side so chairs can slide out and people can walk past. Get those two numbers right for your room and the other decisions, from shape to top material, fall into place.

This guide covers how much table each seat needs, how to check the space in your room, when a round or extension table beats a rectangle, and how to choose between a timber and a stone top, drawing on what the team sees every day across The Furniture Gallery's dining tables.

How much table does each person need?

Start with the person, not the table. A comfortable place setting is about 60 cm wide: room for a plate, a glass and elbows that are not touching the neighbour's. A squeeze setting is about 50 cm, fine for a family dinner but tight at a long lunch.

Width matters too. A table 90 to 100 cm wide leaves room for serving dishes down the middle; narrower than 80 cm and the middle disappears once the food arrives, wider than 110 cm and conversation across the table becomes a shout.

Using the 60 cm rule, these are the rectangular sizes that seat each number comfortably with one person at each end:

Four people: 120 to 150 cm long and 80 to 100 cm wide. A 120 cm table seats two down each side; at 150 cm you can put one at each end and keep the sides freer.

Six people: 180 to 210 cm long and 90 to 100 cm wide. This is the most common size in Perth family homes. At 180 cm you seat two down each side plus the ends; at 210 cm a third chair fits down each side.

Eight people: 240 to 270 cm long and 100 to 110 cm wide. Three down each side plus the ends at 240 cm, or four down each side at 270 cm with the ends kept clear for serving.

The 90 cm clearance rule

This is the measurement people skip, and it decides whether a table works. Measure from the table edge to the nearest wall, bench or piece of furniture. You want at least 90 cm: enough for a chair to be pulled out and sat in, and for someone to pass behind it. Where a walkway runs behind the chairs, allow 100 to 110 cm.

A quick way to work it out: take the length and width of the dining area, subtract 180 cm from each, and that is the largest table that fits with clearance all round. A dining zone 3.6 m by 2.8 m gives you room for a table up to 180 by 100 cm, which is a six-seater. If the result comes out smaller than a four-seater, look at the round and small-room options below rather than squeezing a rectangle in.

Measure to anything that sticks into the space: a kitchen island overhang, a buffet against the wall or a door that swings inward. In open-plan areas, mark the edge of the dining zone on the floor with masking tape first, otherwise the lounge or the hallway quietly absorbs the clearance you need.

Round, rectangular or extension: which shape suits your room?

Rectangular tables seat the most people per square metre and suit long rooms and open-plan areas where the table lines up with the kitchen bench. They are also the easiest to extend.

Round tables suit square rooms and smaller spaces. There are no corners to walk into, everyone can see everyone else, and a round table up to about 120 cm across seats four with ease. A 135 to 150 cm round seats six. Beyond that the centre goes out of reach, so for eight or more a rectangle or oval usually works better. Oval tables are the compromise: the length of a rectangle with softer corners.

Extension tables suit the household that seats four most nights and ten a few times a year. Check three things: the closed size fits the room with 90 cm clearance, the open size still fits when the leaf is in (the one people forget), and there is somewhere to store the leaf when it is out.

Whatever the shape, match the chairs to it. Armchairs need about 60 cm of width each and clearance under the table edge, while slim side chairs can sit closer together. The range of dining chairs covers seat heights and widths if you are buying chairs and table separately.

Dining tables for small rooms and apartments

If the 90 cm rule leaves you with no table at all, there are a few honest ways to make a smaller space work. A round table 100 to 110 cm across seats four, or a rectangle pushed against the wall gives up one side but seats four on 120 cm; pull it out when guests come.

A bench along one side instead of chairs lets people slide in without the full 90 cm behind them, and it tucks under the table when not in use; put it on the wall side so the chair side keeps its clearance. A narrower table, around 80 cm wide, seats the same number and saves 10 to 20 cm of floor. Lighter-looking designs with slim legs or a glass top also make a tight room feel less crowded than a chunky table of the same size.

Timber or stone tops: choosing and caring for them

Timber is the most forgiving top for a family. Solid timber takes knocks, can be sanded and re-oiled if it is marked, and warms up a room. Western Australian hardwoods such as marri and jarrah are popular in Perth for their colour and grain. Care is simple: wipe spills promptly, use placemats under hot dishes, and re-oil or re-wax every year or so depending on the finish. Timber moves slightly with heat and humidity, so keep it away from reverse-cycle vents and west-facing windows.

Stone tops, whether natural marble or engineered stone, give a cool, polished look and wipe clean easily. They are heavy, so the base and the floor need to carry the weight. Marble is porous and will mark if wine or lemon juice sits on it, so it needs sealing and quick attention to spills. Engineered and sintered stone are harder and more stain-resistant, and suit a busy household that wants the look without the upkeep.

Think about the whole room when you choose. If a buffet or sideboard sits in the same room, choose a table that shares its colour or material so the two read as a set.

How to measure before you buy

Measure the dining area, not the whole room, and write down length and width. Subtract 180 cm from each to find the largest table that keeps the 90 cm clearance. If the dining area is open to the lounge on one side, decide where the dining zone ends and treat that line as a wall. Check doorways, hallways and stairs on the way in, since a solid stone top does not come apart.

Then lay masking tape to the footprint of the table you have in mind, put your existing chairs around it and walk behind them with someone sitting down. If you have to turn sideways, the table is too big for the room or the chairs are too deep. If you are furnishing the whole room, plan the table, chairs and storage together so the proportions match; The Furniture Gallery's dining range groups them that way.

The easiest check of all is to sit at the real thing. The Furniture Gallery's dining tables are on display in showrooms across Perth and regional WA, so bring your measurements, try the chairs at the table you like, and the team can help you work out which size and shape suits your room. Find your nearest showroom to get started.

Frequently asked questions

What size dining table seats six comfortably?

A rectangular table 180 to 210 cm long and 90 to 100 cm wide seats six with a person at each end, or a round table 135 to 150 cm across. Allow 90 cm of clear floor around it.

How much space do you need around a dining table?

At least 90 cm between the table edge and the nearest wall or furniture, so a chair can be pulled out and someone can walk behind it. Allow 100 to 110 cm where the space doubles as a walkway.

Is a round or rectangular table better for a small room?

Round is usually better in a square or small room because there are no corners to walk into and it seats four on a smaller footprint. A rectangle suits long rooms and seats more people for its size once you get past six.