An oak dining table is one of the few things in a house you buy once. It will outlast the room it stands in and probably the house itself, which makes getting the size wrong an expensive thing to live with for twenty years.

Most of the decision comes down to two measurements and one honest answer about how often you really host. Here is how we work through it: sizing by seats, then shape, then whether you need an extending table, then the chairs.

Why choose oak for a dining table?

A dining table takes more punishment than anything else in the house. Hot plates, homework, spilled wine, jigsaw puzzles, a decade of Sunday lunches. Whatever you buy is going to get marked.

That is the real argument for solid oak, and not the one people expect. It is not that oak resists damage, though it is dense enough to shrug off most of it. It is that when oak does get marked, the mark comes out — a scratch or a ring sands back and re-oils, because the timber runs all the way through. A veneered top gives you one chance. Our piece on why solid oak outlasts flat-pack has the construction detail.

What size dining table do you need?

Two rules do nearly all the work here.

• 60cm of table edge per person. That is the width one adult needs to eat without knocking the person beside them.
• 90cm of clear floor all round. Enough to pull a chair out, sit down, and let someone pass behind you. On a side that is only ever walked past, 70cm will do at a squeeze.

Put those together and the sizing falls out:

Measure your room against the third column before you fall for anything in the second. Better to know now than on delivery day.

Rectangular, round or oval?

Rectangular seats the most people per square metre and suits most rooms, which is why most tables are.

A round table earns its place in a squarer room. No corners to catch a hip, everyone can see everyone, and a pedestal base means no legs in the way when you squeeze in an extra chair. The trade is capacity: a 100cm round seats four, 120cm seats six, and you need about 150cm to genuinely seat eight.

Oval is the compromise, and the one we most often recommend for a narrow Highland dining room or a kitchen-diner where people brush past constantly: close to the footprint of a rectangle, without the corners.

Buy the table you use on a Tuesday. Extend it for the three days a year you need more.

Do you need an extending dining table?

Ask honestly how often you seat more than six. If the answer is Christmas, a birthday and one summer evening, buy for everyday use and extend for those three — a table you squeeze past for 362 days is a bad trade.

September is when this question arrives, and Christmas is fifteen weeks away, so there is time to order without anyone panicking. Two mechanisms are worth knowing:

• Butterfly leaf. The leaf folds in half and stores inside the table itself. Nothing to find, nowhere to put it, no cupboard needed.
• Separate leaf. The leaf lifts out and lives elsewhere — under a bed, on top of a wardrobe. Simpler and usually cheaper, provided you have somewhere to keep it and remember where that is come December.

Either way, a single leaf typically adds 40 to 50cm — one more place setting each side, two more diners. Check the extended length against the 90cm rule, not just the closed length. A table that fits beautifully shut and blocks the door open has solved nothing.

Choosing dining chairs that actually fit

Chairs are bought last and cause most of the regret, usually because nobody checks the heights against each other.

A standard dining table is 75cm high. Against that, look for a seat height of 45 to 47cm, leaving 28 to 30cm of knee room. The catch is the apron — the rail under the tabletop — which can eat 8 to 10cm of it. Measure to the underside of the rail, and if you are tall, sit at it before committing.

A few other things worth knowing when you look at dining chairs:

• Allow 50 to 55cm of table edge per chair so elbows do not clash. Carvers, the chairs with arms, need more and may not tuck fully under.
• Fabric seats are kinder over a long meal; wooden seats wipe clean in a second, which matters with young children.
• A bench seats more in less space and tucks away completely, but there are no backs and the person in the middle has to climb out.

Oiled or lacquered oak?

Two finishes, two repair stories. An oiled top is matte, feels like timber under the hand and sits in the wood rather than on it, so a mark can be spot-sanded and re-oiled in place. It wants re-oiling once or twice a year.

A lacquered top is a sealed film over the surface. It shrugs off spills more readily, but a deep scratch means refinishing the whole top rather than one corner. Neither is wrong. Our oak care guide has the routine for both.

Buy the set, or mix it?

Matching every piece can read as a showroom rather than a home; mixing without a plan looks like an accident. Our rule is to match what sits in the same sightline and be freer with everything else.

So the table and the sideboard should agree, since you see them together from the doorway, while chairs can vary in tone without harm. The Hatton Collection is the worked example: table, seating and sideboard designed to the same grain and finish.

And do not skip the sideboard. It takes the linen and the serving dishes that otherwise colonise the table.

Quick answers: oak dining table FAQ