High back restaurant booths and privacy, and what the extra inches cost the floor

Forty-eight inches is as tall as a back gets on our standard-height booths, and it puts a great deal of upholstery between one party and the next. Whether that is worth having depends on where the back stands, because a back gives privacy only when it faces a neighbor.

A high back along a wall hides plaster. Put the same back between two parties and the evening changes: the card handed across the table, the toast, the lean of a quiet conversation all stay on one side of it. What follows sorts the places a back can stand, what each height reaches, and what a taller back costs the floor.

Where a back faces a neighbor

A booth back stands in one of three places. Against a wall, it faces plaster, and its height changes nothing about who can see the guests. Back to back with another bench in a double booth, which lists 43 1/2 inches deep in the metal range, it faces the next party directly. And in a run set at right angles to the wall, each booth's backs face the aisle and the booths beside it.

Only the second and third carry any privacy. So the first question for a layout is how many of its backs face a neighbor, and the count is usually lower than the drawing suggests.

What 36, 42 and 48 reach

Start from the table. A dining table stands about 30 inches high, which puts it 6 inches below a 36-inch back, 12 below a 42, and 18 below a 48. Those are the figures that matter to the party on the other side, because the table is what they would otherwise be watching.

Then start from the seat, which sits 17 to 19 inches off the floor; call it 18. Above it the three backs rise 18, 24 and 30 inches. On a seated guest that is roughly mid-back, roughly the shoulder, and up toward the neck. Even the tallest back leaves heads showing. What it takes out of view is the table, the hands and the shoulders.

A center run, measured

Say a dining room carries two 72-inch double booths end to end, a run 144 inches long. Count across the room: a 36-inch service aisle, 16 inches of chair past the table edge, the 30-inch booth table, the 43 1/2-inch double, then the same again on the far side. That is 36 plus 16 plus 30 plus 43 1/2 plus 30 plus 16 plus 36, or 207 1/2 inches, which is 17 feet 3 1/2 inches.

Along the length, add a 36-inch aisle at each end and the strip measures 216 by 207 1/2 inches, about 311 square feet. Each 72-inch face seats three on the bench at 24 inches apiece and three on chairs opposite. Two faces to a double and two doubles make 24 seats, which is 13 square feet each, the middle of the 12 to 15 a full-service room is planned at.

The run also turns one floor into two aisles. A 48-inch back is a wall to anyone sitting and a low rail to anyone standing, so the host and the servers see across it and the guests don't. That asymmetry is the whole idea. Its cost is the walk: a server who serves both faces goes around the end of a 144-inch run, so keep a station on each side or stop at two doubles. The freestanding booths guide takes the divider question further.

Seating matters here too. The three guests on a bench face their own aisle with the back behind them, so they see the room and no one sees them from behind. The three on chairs face their companions and the padded wall beyond. A host who knows this seats a first date on the chairs, where the room stays out of the picture, and a birthday table of six on the bench, where the room is part of the party.

The edge beneath the back

Privacy has a floor as well as a ceiling. A booth on a black kick base closes the bottom, so feet and bags stay on their own side. A booth on wood or metal legs shows both to the next party. The channel back booths list the kick base as standard, and the plain-back privacy booth with wood legs trades it for legs in eight wood finishes, in lengths from 54 to 78 inches.

Choose legs where the lifted look is worth the open bottom. Choose the kick base where the back is carrying the privacy and the floor should say nothing. Whichever base you pick, the back's covering takes the wear of shoulders all evening, and the upholstery materials guide compares vinyl and fabric for a surface people lean on.

Different heights in one run

Each booth lists its own height, so a run can step. The catalog narrows the choice first, though. A fan-back booth lists 42 and 48 inches with no 36, and the metal booth lists 42 only, so the back you like can set the range before you do. The configurable booths are where all three heights are listed together.

Put 48 where a back faces a neighbor, 42 at the ends of a run where it meets an aisle, and 36 beside the host stand, where the room should stay in sight. The mistake that costs the most is ordering 48 everywhere because one corner looked right. Along a wall it buys a few inches of upholstery and no privacy at all. The buying guide puts the height decision in order with the rest, and booths against loose seating shows where a back is worth having in the first place.

Stand a sheet of plywood where the back will go

A 4 by 8 sheet of plywood stood on its short edge is 48 inches tall, which makes it the cheapest booth back you can test. Set it on the floor line, put chairs at the table on both sides, and sit. Look at what the guests on each side would see, then ask a server to cross the aisle and the host to stand at the stand. Mark 42 inches and 36 inches on the sheet with tape and repeat the walk at each line.

Booths are built to order, and a height can't be changed once one is in production, so this is the place to decide it. Draw the run into a seating plan once the heights are settled, and if two faces still seem to argue, a specialist callback is booked in three windows, Monday to Friday, in Central time.