That’s the baseline we use at Pulse Merch, our screen printing and embroidery shop in Cedar City, Utah, when a coach, event organizer, or business owner walks in with a headcount and a logo.
The quick formula: attendees + buffer + replacement stock + growth allowance = your order quantity. For a straightforward one-time event, that’s just the buffer. For a team or crew you’ll be reordering for annually, add a growth line.
- Baseline buffer: 5–10%, size-dependent
- Screen-print cost crossover: roughly 100–150 units for simple one or two-color art
- Under 25 people: skip the percentage math and just add 2–3 extra shirts
Pro Tip: Don’t round down on your buffer to save $40. A rush reprint for three missing mediums almost always costs more than ordering them up front.
Quick Rules of Thumb by Use Case
Different situations call for different math. A season-long sports team isn’t the same math problem as a one-day 5K.
- Season sports teams: order 1.25–1.5 shirts per active roster spot. Kids grow, uniforms get torn on gravel infields, and you’ll add a player or two mid-season.
- Corporate teams (staff shirts, conference gear): 1.05–1.1 per employee is usually enough since attendance and sizing are known quantities.
- One-day events (races, fundraisers, festivals): 1 shirt per registrant plus 5–15% buffer, weighted toward walk-up registrations if you allow them.
- Volunteer crews with turnover: treat this like a season team, not a one-day event. Volunteers cycle in and out, and last year’s shirts often don’t reappear.
A 25-player youth soccer team ordering 30 shirts covers call-ups and a couple of size swaps without a second invoice. A 300-person 5K printing 330 to 345 shirts rarely runs short, even with same-day sign-ups. A 40-person volunteer crew with 30% annual turnover should order 50 to 55 to cover new volunteers through the year without a rush reorder every few months.
Pro Tip: If your budget is tight, order the minimum on niche sizes (XS, 3XL+) and the extra buffer only on M/L/XL. That’s where most last-minute size swaps land anyway.
How Do You Calculate a Size Breakdown?
Most general adult groups land close to this size distribution: S 10 to 15%, M 25 to 30%, L 30 to 35%, XL 20 to 25%, and 2XL and up 5 to 10%. Event organizers running mixed-gender crowds sometimes see a slightly different spread, closer to XS 4%, S 18%, M 30%, L 26%, XL 14%, XXL 6%, and 3XL 2%, according to one event sizing calculator. Both work as starting templates. Neither replaces an actual headcount when you have one.
Round up, not down, and round to your supplier’s ordering unit. If your supplier sells in dozens, a calculated need of 27 mediums becomes 36, not 27 loose units split across two invoices. That rounding gap is exactly what your buffer stock should absorb, per the same sizing and rounding guidance.
For collecting actual sizes, skip the guessing game. Use a registration form with a forced size selection and a printed chart, not an open text field. Passive size estimates consistently misfire on volunteer and family events where nobody wants to admit they’ve moved up a size since last year.
| Group type | Typical demographic skew |
|---|---|
| Corporate staff | Heavier toward M/L, lighter on XS/S |
| Athletic teams | Wider spread, more S/M for younger athletes |
| Family/mixed events | Needs youth sizing tier, don’t skip it |
For any group over 25, always order samples in at least S, M, L, and XL in the exact brand and style you plan to run, per group ordering best practices. Sizing charts lie between brands more often than people expect.
How Do Quantity Breaks Affect Price Per Unit?
Screen printing carries a fixed setup cost per color, so the cost of that setup gets spread across more shirts as your order grows. Embroidery works differently: machine time drives the cost, so per-unit pricing stays relatively flat whether you order 20 polos or 200.
For simple one or two-color designs, screen printing tends to become the more economical choice somewhere around 100 to 150 units, per the same cost-driver analysis. Below that range, digital methods like DTF often win on total cost since there’s no setup fee to amortize.
| Order size | Typical decoration fit | Price-per-unit behavior |
|---|---|---|
| 1–50 units | DTG/DTF or embroidery | Higher, stable per-unit cost |
| 50–150 units | Screen print (transitional zone) | Setup cost starts spreading out |
| 150+ units | Screen print | Unit cost drops meaningfully |
Before you bump an order size just to hit a price break, run the math both ways: incremental savings times units versus the risk of shirts sitting in a closet. If your logo isn’t finalized, don’t chase the discount. We’ve reprinted more “final” logos than I’d like to admit.
Pro Tip: Ask your printer for pricing at two tiers, your actual count and the next break point. Sometimes the jump from 140 to 150 units costs less than the savings, and sometimes it doesn’t. Never assume.
Our guide on what affects the cost of custom apparel breaks down every line item that shows up on a quote.
Which Decoration Method Fits Your Order Size?
Embroidery holds up best on polos, hats, and jackets, and its price barely moves whether you’re ordering a dozen or a hundred. Screen printing gets cheaper per unit as volume climbs, which makes it the natural fit for large tee runs once you clear that 100 to 150 unit range. DTG and DTF fill the gap below that, especially for full-color or photo-style art that would need a dozen screens.
Each method has hard limits worth knowing. Embroidery struggles with fine detail and small text under about a quarter inch. Screen printing adds cost per color and per print location. DTG and DTF have per-square-inch pricing that scales less predictably at high volume.
- Polos, jackets, structured logos: embroidery
- T-shirts over the screen-print crossover: screen printing
- Small runs or photo-realistic art: DTG or DTF
Pro Tip: For medium-size orders with mixed garments, we often mix methods, embroidery on polos, screen print on tees, in the same job. It controls cost without sacrificing durability on either piece.
How Many Extra Shirts Should You Keep in Reserve?
Buffer size should scale with group size, not stay a flat number. Groups under 25 should add 2–3 extra shirts rather than calculate a percentage. Below roughly 30 people, a single missing size hurts proportionally more than any formula accounts for.
- Under 25 people: 2–3 extras, no percentage math needed
- 25–50 people: 5–10% extra, concentrated in M/L/XL
- 50–100 people: 8–10% buffer across common sizes
- 100+ people: 10% buffer across all common sizes
For programs you’ll reorder for annually, growth allowance is a separate line from your buffer. If your crew grew from 40 to 48 people last year, don’t just order 44 as a compromise, plan for 50 to 55 and buy yourself a full year before the next invoice. Our piece on minimum order quantities for Utah custom apparel covers how batch sizing interacts with reorder timing.
Label your reserve stock by size and store it somewhere dry. Extras from two logo versions ago are just fabric taking up shelf space.
Pro Tip: When a logo changes, don’t throw out old buffer stock, reissue it to new hires or use it as work shirts. It’s still usable inventory, just not front-facing anymore.
When Should You Order Samples, and How Long Does Production Take?
Order samples any time you’re working with a group over 25 or switching to a new brand or style, full stop. Sample turnaround typically runs a few days to a week depending on decoration method, then production adds another window on top once art is approved.
- Send your size survey 3 to 4 weeks before the in-hands date you need
- Set a hard size cutoff at least 10 days before you submit the order
- Submit final artwork before requesting a formal quote, not after, since artwork status changes the estimate
- Build in a buffer window between “shirts arrive” and “event day,” even if it’s just 3 to 4 days
Rushing artwork approval is the single most common way an in-hands date slips. Our timeline breakdown walks through each production milestone in more detail, and our step-by-step ordering guide for teams covers the survey-to-delivery sequence start to finish.
What Mistakes Do Most First-Time Bulk Buyers Make?
The most expensive mistake we see is guessing sizes instead of surveying them. A construction crew once ordered based on “medium for most guys,” and we ended up reprinting a third of the run in larger sizes two weeks before a job-site deadline.
Cheap blank garments cause the second most common failure. Thin cotton tees pucker under a dense screen print, and low-quality poly blends can scorch under a heat press. We’ve seen entire event orders where the print looked fine on day one and started cracking within a few washes because the blank couldn’t hold the ink.
Screen print failures usually show up as cracking or fading from a cheap blank, not the ink itself. Embroidery failures happen on stretchy or thin fabric, where the stitching puckers the material. That’s why we steer heavier logos toward structured garments and keep detailed embroidery off anything with stretch.
Pro Tip: Test your exact brand and style before committing to a full run. A size medium in one brand can run a full size smaller than another.
How Pulse Merch Helps You Get the Quantity Right
There’s no shortage of online calculators for figuring out shirt quantities, but none of them catch a bad blank choice or a logo that won’t hold up on stretch fabric. That’s where having an actual production shop in the loop pays off. At Pulse Merch, we run size surveys, sample orders, and price-break comparisons in-house before you commit to a full production run, so the number on your invoice matches what actually shows up at your event.
We’ll walk through your headcount, recommend a buffer based on your group size and turnover risk, and tell you honestly whether screen print, embroidery, or a mixed approach fits your budget and garment choice. If your growth is unpredictable, we can also stage delivery so you’re not locked into one giant order months in advance. Reach out through our quote request page with your headcount and target date, and we’ll build the size breakdown with you before you place anything.
Sources
- Embroidery vs Print for Custom Apparel: A Bulk Order Decision Guide
- Event T‑Shirt Quantity Calculator – Online by Size Distribution
FAQ
How many shirts should I order for a 30-person team?
Order shirts with about a 10 percent buffer on top of your roster, concentrated in the M/L/XL range where most last-minute size swaps happen.
What percentage buffer should I add to a group order?
Groups under 25 should add 2 to 3 extra shirts rather than a percentage; groups of 25 and up typically add 5 to 10 percent depending on total size.
Is screen printing or embroidery cheaper for bulk orders?
Screen printing gets cheaper per unit as your quantity climbs past roughly 100 to 150 units, while embroidery pricing stays relatively flat regardless of order size.
Do I need to order samples before a bulk run?
Yes, for any group over 25 or any time you’re switching brands or styles, order samples in at least S, M, L, and XL first.
How far in advance should I place a bulk shirt order?
Send your sizing survey 3 to 4 weeks out, cut off sizing at least 10 days before submission, and build in a few extra days of buffer before your event date.
Can Pulse Merch help figure out my exact size breakdown?
Yes, our team runs size surveys and price-break comparisons in-house and can recommend a buffer based on your specific group size and growth pattern.
What happens if I underorder and need more shirts fast?
Rush reorders almost always cost more per unit than ordering extras up front, which is why a proper buffer is usually cheaper long term than reprinting.