What Size Dining Table Do I Need? (UK Guide)

Written by the Off the Grain workshop team. Last updated 11 June 2026.

The most common question we get before someone orders a table isn't about wood or finish. It's “will it actually fit?” Get the size right and a table makes the room. Get it wrong and you spend years turning sideways to squeeze past the chairs. This guide walks through how to work out the right dining table size for your space and the number of people you want to seat, with a dimensions table you can measure against.

How to measure your dining space

Start with the room, not the table. Measure the length and width of the area the table will sit in, then mark where it would go. The easiest way is to cut newspaper or cardboard to a size you're considering and lay it on the floor, or put masking tape down in a rectangle. Sit a chair at it and pull the chair out as if you're getting up. That tells you in thirty seconds whether a size works far better than a number on a screen does.

The figure that catches people out is clearance, not the table itself. You need room to pull chairs out and walk behind them, and that space comes off your room measurement before you choose a table. More on the exact clearance below.

The space-per-person rule

The simple rule we use: allow about 60cm of table edge per person, and 65cm if you want elbow room. So six people need roughly 180cm of usable edge between them, three a side.

Width matters too. A table around 90cm wide lets two people sit opposite each other with a place setting each and still leaves a strip down the middle for serving dishes, water and candles. You can go down to 80cm if the room is tight, but below that the dishes start crowding the plates.

Dining table size by number of seats

A rough guide for rectangular tables, the most common shape:

For round tables, go by diameter:

These are comfortable everyday sizes. You can seat an extra person at each end of a rectangular table for special occasions, so a 180cm six-seater will take eight at Christmas with people sitting a little closer.

Round, rectangular or square?

Rectangular is the most space-efficient for seating and suits most rooms, especially anything seating six or more. It's the shape that fits a typical UK dining room or kitchen-diner best.

Round is the most sociable. Everyone can see everyone, there are no corners to catch a hip on, and a round table fits a small or square room neatly. The catch is it doesn't scale well. Past six seats a round table gets so wide that no one can reach the middle.

Square works for four in a square room and looks balanced, but it scales poorly. Add more than four and you're back to a rectangle.

One tip whatever the shape: a pedestal or end-leg base gives more legroom than four corner legs, and makes it easier to slide an extra chair in, because there's no leg in the way.

Clearance you need around the table

This is the bit most people underestimate. You want around 1 metre (100cm) between the table edge and the nearest wall or furniture on each side people use. That gives room to pull a chair out, sit down, and for someone to walk behind. The absolute minimum to seat a chair at all is about 75cm, but at that point no one's getting past while you're eating.

So before you pick a length, take your room measurement and subtract the clearance from both relevant sides. What's left is the largest table footprint your room can take comfortably. It's usually smaller than people expect, which is exactly why measuring first saves a costly mistake.

Made-to-order: getting the exact size

Standard sizes rarely match real rooms. Most dining rooms aren't built to a round number, and the difference between a table that fits and one that doesn't is often 10 or 20cm.

Because every table is made to order in our Halifax workshop, we cut to the size your room needs rather than the nearest stock size. If your space takes 190cm and not 180, or you want a narrower 85cm width to keep a walkway clear, that's how we'll make it. Send the measurement and we'll confirm what works before anything is cut.

Browse the full dining table range in oak and pine, the solid oak dining tables, or our dining table and bench sets if you want seating that tucks fully under the table to save space.

Frequently asked questions

What size dining table seats 6?

A rectangular table around 150–180cm long and 90cm wide seats six comfortably, allowing about 60cm of edge per person. A round table needs roughly 120–130cm in diameter to seat six.

What size table do I need to seat 8?

Allow 200–220cm in length and 90–100cm in width for eight people at a rectangular table. You can seat eight at a 180cm table for occasional use by adding a chair at each end and sitting a little closer.

How much space do you need per person at a dining table?

About 60cm of table edge per person as a minimum, or 65cm for comfortable elbow room. Use that to work backwards from your seat count to the length you need.

How much clearance do you need around a dining table?

Aim for around 1 metre between the table edge and the nearest wall or furniture so chairs pull out and people can walk behind. The bare minimum to seat a chair is about 75cm.

What size dining table fits a small dining room?

Measure the room, subtract about 1m of clearance from each side people use, and choose a table that fits what's left. A round table or a pedestal base often suits a small room best, and a made-to-measure size lets you use every usable centimetre.