The T-Shirt Size Curve: How Many of Each Size to Order

Nothing sinks a live station faster than running out of large at eight o’clock with two hours of party still to go. The press is almost never the bottleneck. The blanks are — which makes the t-shirt blank size curve for live printing events the one spreadsheet worth building carefully before you place an order.

Here is the curve we start from, how to bend it for a specific crowd, and what to do when you get it wrong anyway.

Order past headcount, but not far past

Start at 1.05 to 1.15 pieces per expected guest. For 400 people that is 420 to 460 shirts. The overage is not generosity; it is insurance against the size curve being slightly off, because a shirt in the wrong size is functionally not a shirt.

The number that matters, though, is expected redemptions, not attendance. If a station runs four hours at a nine-hour festival, or the shirt is gated behind a badge tier, or half the room has already left by the time the bar opens, headcount is the wrong denominator. Estimate how many people will actually reach the counter, then apply the multiplier to that.

A default curve to argue with

For a mixed adult crowd in unisex tees, we start here, per hundred shirts:

• XS — 2
• S — 10
• M — 20
• L — 27
• XL — 22
• 2XL — 13
• 3XL — 6

Large and XL together are half the order, and that is not an accident. They are the true mode of an adult crowd, and they are also the safe pick for anyone between sizes or planning to sleep in the thing. Assume they go first.

Carry 3XL. Six pieces per hundred is a rounding error on the invoice, and the cost of a guest reaching the front of a line to be told nothing fits is wildly out of proportion to what those six shirts cost. If your RSVP form can collect size, add a 4XL line to it and order to the actual requests.

Bend it toward the room

The default is a starting point, not an answer. Move it:

• Enterprise tech, construction, finance, trade shows. Skews larger and older. Push toward L 28, XL 25, 2XL 15, 3XL 8, and drop XS entirely.
• Music, lifestyle, fashion, consumer launches. Younger and more mixed. Pull left: S 15, M 25, L 25, XL 18.
• Campus and student events. Smaller across the board, with a real XS demand.
• Running, cycling, fitness. The narrowest curve you will ever order. Heavy S and M.
• Community and family days. Add youth sizes as a separate small block rather than stretching the adult curve down.

One adjustment matters more than any of the above: if your crowd is mostly under thirty, add a size. Oversized fit is the default preference right now, and people will take an XL to wear as a boxy tee whether or not it is their measured size. Shift the whole curve one step right and you will finish the night with less dead stock.

And when you can just ask, ask. Weddings, offsites, team events and private parties all come with a known guest list. Guessing at a curve for 90 named people is a choice, not a necessity.

Unisex, fitted and the second-body trap

Offering a fitted cut alongside unisex sounds inclusive and usually plays out badly, because carrying a real size run in two bodies roughly doubles the blank order. What actually happens is the fitted cut arrives half-stocked, runs out of its middle sizes in the first hour, and the people it was meant to serve end up in unisex anyway — now with the added experience of being told no.

One well-chosen unisex body in a softer, slightly shorter cut serves nearly everyone. Spend the money you saved on a better blank instead; our notes on choosing blanks for live printing cover which ones hold a transfer and still feel good.

If a second body is genuinely required — a brand where fit is the product, say — stock it properly or not at all.

Triage, and what to do with leftovers

Assume you will run short somewhere. Two things blunt it:

1. Hold back stock. Pull roughly 15 percent of your L and XL off the table at the start and release it at a set time in the back half of the event. Late arrivals are a real constituency and they are always the ones who get nothing.
2. Carry a second product. A tote, a cap or a crewneck lets an attendant offer an alternative instead of an apology. A guest who leaves with something is a different outcome from a guest who leaves empty-handed.

Two rules for the counter. Take size at intake, at the front of the line, not at the press — that gives you a live burn rate per size per hour, and you can post a sold-out card before people invest a twelve-minute wait. And never pre-print into inventory. A stack of pre-printed mediums nobody claimed is dead stock, while a stack of blank mediums goes back in the box and gets used at the next event. Printing to order is a size-curve strategy as much as a workflow one.

Order the overage in the sizes easiest to place afterward. For a corporate client, leftovers should be the sizes their office will actually wear. It is worth thirty seconds of thought at the order stage and it changes what happens to forty shirts. If you are weighing that against the rest of the budget, our breakdown of cost factors puts blank spend in context.

Frequently asked questions

How many shirts should I order for 400 guests?
Roughly 1.05 to 1.15 pieces per expected guest, so 420 to 460 shirts for 400 people if you expect most of them to take one. If the shirt is gated behind a badge tier or the event runs long past the station hours, base the number on expected redemptions instead of headcount.

What is a good default t-shirt size curve?
For a mixed adult crowd, start near 2 percent XS, 10 percent small, 20 percent medium, 27 percent large, 22 percent XL, 13 percent 2XL and 6 percent 3XL. Then bend it toward the real audience. A tech conference runs larger and a campus or fitness crowd runs smaller.

Should we offer a fitted cut alongside unisex?
Only if you can carry a full size run in both, which roughly doubles the blank order. Most events do better with one unisex body in a soft, well-cut blank. A half-stocked second cut runs out early and reads worse than never offering it.

Send us the guest list shape

Tell us the crowd, the headcount and the hours the station will actually be open, and we will come back with a size breakdown and a blank order rather than a guess. See pricing for what a staffed station includes, call (562) 614-4800, or request a quote and we will hold the date.