The dining room did not die, it moved

Everything here earned its place by changing an outcome. Nothing about dining spaces is included to round the number up.

Single-purpose rooms lose

A separate dining room used for occasional formal meals occupies a large share of a floor plan for a small share of the hours. Where households have absorbed that room into a kitchen or a study, the driver has been utilisation rather than fashion. The table itself survived because it is the most flexible surface in a house — work, homework, laying out plans, folding washing, eating.

Designing for that reality produces a better room than designing for the twice-yearly dinner.

The dimensions that decide comfort

Around six hundred millimetres of table edge per person is the point below which elbows collide, and seven hundred is generous. A table width of eight hundred and fifty to a metre allows serving dishes down the middle without pushing plates to the edge.

Chairs need roughly seven hundred and fifty millimetres to pull back, and about a metre to allow someone to walk behind a seated person. These clearances, not the table size, are what make a dining space feel cramped, and they are frequently omitted from plans.

Round, rectangular and the trade between them

Round tables seat people in a single conversation and have no head, which suits four to six people well. Rectangular tables fit rooms and walls better, extend more easily, and split into two conversations above about eight people, which is normal rather than a failure.

Over years, a round table needs more floor area than a rectangle seating the same number, which is the constraint in small rooms. Pedestal bases remove the leg conflict that stops an extra chair being squeezed in, which is a real advantage at capacity.

Light over a table is a special case

A pendant hung around seven hundred to eight hundred millimetres above the table lights faces and food without sitting in anyone's eye line. The shade needs to be opaque or diffused below, because a bare lamp at seated eye level is the most common dining lighting mistake. A dimmable light over the table plus almost nothing else is the setting that makes a meal feel like an occasion.

Room to room, if the table moves, use a lamp on a hook or a track rather than committing a ceiling rose to a position you will change.

Chairs are worn hard

Dining chairs take the most punishment of any seating: dragged, leaned back on, sat on by children, and cleaned. Joints under the seat rail are where they fail, and a chair with a corner block glued and screwed will outlast one relying on dowels alone. Upholstered seats in a household that eats at the table need removable or wipeable covers, and not planning for that is a decision you make once.

Mismatched second-hand chairs solve the cost problem and generally look better than a matched set of cheap ones.

Where the table actually goes

A table in the kitchen gets used more than a table in a separate room, because it is where people already are. A table against a wall or a window with bench seating on one side takes far less floor area and still seats four. Where a room must serve as both office and dining space, the difference is storage: somewhere for the work to go in ninety seconds.

The quieter point is that test any position by living with a marked-out footprint for a week before ordering a table that is difficult to return.

Everything above, in order of what to do first

1. Single-purpose rooms lose. A separate dining room used for occasional formal meals occupies a large share of a floor plan for a small share of the hours.
2. The dimensions that decide comfort. Around six hundred millimetres of table edge per person is the point below which elbows collide, and seven hundred is generous.
3. Round, rectangular and the trade between them. Round tables seat people in a single conversation and have no head, which suits four to six people well.
4. Light over a table is a special case. A pendant hung around seven hundred to eight hundred millimetres above the table lights faces and food without sitting in anyone's eye line.
5. Chairs are worn hard. Dining chairs take the most punishment of any seating: dragged, leaned back on, sat on by children, and cleaned.
6. Where the table actually goes. A table in the kitchen gets used more than a table in a separate room, because it is where people already are.

The takeaway

Put the table where people already are, allow a metre behind the chairs, and hang one dimmable light over it.

A room that is used will always beat a room that is finished.