Measuring three small restaurant patio layouts on one 12 by 16 foot floor

A patio 12 feet deep and 16 feet wide looks like room for a dozen guests, right up to the afternoon the first tables arrive. Then the aisle appears, the chairs push back from the edge, and the count settles at eight.

Same floor, different layout, and the count can double. What changes is not the outdoor furniture at all. It is which way the chairs face and where the one aisle runs. Below are three layouts measured on that same 192 square feet, with every number on the page so you can drop in your own.

Four numbers do the work

The chair comes first. An outdoor ladder-back chair lists 18 3/4 inches deep, and a seated guest uses all of it beyond the table edge. Where a page in the patio chairs range lists a depth, use that number for the chair you are actually considering. Behind that chair, leave 18 inches at the tightest and 24 if the floor allows. A server's aisle runs about 36 inches. For the tabletop, plan on 24 inches of edge per diner; 18 is the cramped limit.

Treat the 144-inch depth as a budget and spend it in bands. Before drawing anything, run the paper count: 192 square feet at 12 to 15 square feet per seat gives somewhere between 12 and 16 seats. Occupancy limits from your local code come first, and your architect or designer checks them.

That paper count is the ceiling. Which layout gets near it is the real question.

One file of two-tops

Put a row of 30-inch squares along the wall with a chair on each side of every table. One set, chair plus table plus chair, spans 18 3/4 + 30 + 18 3/4, which is 67 1/2 inches. Add 18 behind the wall chair and 36 for the aisle, and the file needs 121 1/2 inches of depth. The patio has 144, so it fits with 22 1/2 inches left over, enough for a planter or a host stand and not enough for a second row.

Now the width. Leave 18 inches between table edges and four tables take 4 x 30 + 3 x 18 = 174 inches of the 192. A fifth would need 222. Four tables, eight seats, half the paper count.

The file has its virtues. Couples face each other, and the server reaches every table from one aisle. A 30 by 30 inch outdoor resin tabletop comes in that size, with an umbrella hole as an option, and the wider patio tables range holds the other sizes.

Two rounds instead of four squares

A 36-inch round seats four. With a chair on every side its ring measures 36 + 2 x 18 3/4 = 73 1/2 inches across, so the depth becomes 18 + 73 1/2 + 36 = 127 1/2 inches, still inside 144. Along the wall, two rings with an 18-inch gap use 165 inches, and a third will not fit. Two rounds, eight seats.

Eight again, with half as many tables to level and wipe, and a party of four stays together. The cost is that a couple sits at a table built for four and two chairs stand empty. If most of your guests arrive in twos, the file is the better eight. If they arrive in fours, take the rounds, and read the round versus square guide before you commit.

Seat along the edges, run one aisle down the middle

Now turn the chairs around. Put a table run or a ledge along the wall, 24 inches deep, and another along the rail. Guests sit on the aisle side with their backs to it, facing the table. Each band spends 24 + 18 3/4 = 42 3/4 inches, so two bands and the aisle cost 2 x 42 3/4 + 36 = 121 1/2 inches. That is the same depth the single file used.

The difference is the length of seating. At 24 inches of edge per diner, a 192-inch run seats 8, and both sides seat 16. That works out to 12 square feet per seat, the tight end of the paper count, from the same depth that gave the file eight.

If the rail side is a bar-height ledge, stools go 24 to 30 inches center to center. Sixteen feet holds six at 30 inches and eight at 24. An outdoor ladder-back bar stool lists a 29 1/4 inch seat and stacks, which suits a ledge in the usual 40 to 42 inch range. Browse the full set of patio bar stools for other frames.

Be honest about the trade. Guests sit shoulder to shoulder and look at a wall or the street, not at each other. A party of four lines up in a row. That works for friends sharing a drink at sunset, and less well for six people settling in to a long dinner.

The mistake that eats the aisle

Buying by seat count is the usual error. An owner wants 16 seats, orders eight two-tops, and sets all eight on a floor that fits four. The aisle quietly disappears and servers start turning sideways. Two files of two-tops do give 16 seats, but they need 18 + 67 1/2 + 36 + 67 1/2 + 18 = 207 inches, which is 17 feet 3 inches of depth. That is 85 1/2 inches more than the edge layout asks for.

Posts, planters and a downspout steal inches from the 144, so measure depth at the narrowest point and never the middle. Some things take floor and never show on a table list: the umbrella base, a heater, a partition stand, the door swing. Draw them in. The umbrella placement guide and the partition placement guide cover how they change the bands.

On a sidewalk, your city decides how much walkway has to stay clear, and that line comes before any number above. Ask before you lay down tape.

Tape the bands before opening weekend

Pull out painter's tape and mark all three bands on the real floor: the 18-inch strip behind the chairs, the 36-inch aisle, and the table band. Set two chairs and a table inside them, sit down, and have someone carry a full tray down the aisle. Fifteen minutes of that tells you more than a drawing will. If the tray touches a chair back, the aisle is too narrow, and no seat count makes up for it.

Keep the layout that works as its own plan. Save the tables, stools and quantities to your patio plan, and write the aisle width in inches on the first line of the notes. Your browser holds up to 30 plans, so each layout you tried can stay as its own. Then nobody borrows the aisle for one more table in July.