What Size Sublimation for Shirts? Design Size Chart by Placement

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For a full adult shirt front, size your sublimation design about 11 inches wide, with the height in proportion. Youth fronts are about 9 inches, left-chest logos about 3.5–4.5 inches, and short-sleeve prints about 3 inches. Those are the standard sizes Transfer Express, a large US transfer printer, recommends, and they carry over to sublimation.

The catch with sublimation is paper. An 11-inch adult front won't fit on letter paper, so your printer's maximum width decides which of these sizes you can actually print.

Sublimation design size chart

Sizes come from Transfer Express's design-size guide. They're starting points: the look you want and the actual shirt decide the final size. Fitted and junior cuts need smaller designs than standard adult tees.

Which paper and printer each size needs

Printer margins take a few millimeters off each side, so check the printable area before you set your canvas. If you're printing adult fronts, see our wide format sublimation printer guide; paper types are in our sublimation paper guide.

How to size a design for a specific shirt

1. Lay the shirt flat and measure across the chest from seam to seam, about an inch below the armpits.
2. Leave a margin. For a front print, keep at least a couple of inches clear of each side seam; the design should look centered, not edge-to-edge.
3. Pick the width from the chart, then check it against your measurement. On a small shirt, the chart size may be too wide.
4. Set the height in proportion. Tall, narrow designs can run longer; wide designs stay shorter.
5. Mark the placement. Fold the shirt in half to crease a center line. A common rule is to start a full front about 3–4 inches below the collar on adults, closer on kids.
6. Print a paper test. Print the design on plain paper, cut it out and lay it on the shirt. It's the cheapest way to catch a size mistake.
7. Mirror and print on sublimation paper.

The full pressing process is in our guide to how to sublimate a shirt.

Sizing across a range of shirt sizes

Orders often mix sizes. Transfer Express suggests that one design around 10–10.5 inches wide can look right on both youth and adult shirts. If the range is wide, from toddler to adult XXL, use two or three design sizes:

Treat these as guides and check against your blanks, since brands cut differently. Our shirts for sublimation guide covers polyester blanks and their fit.

Match your heat press to the design

The press must cover the whole design plus a margin. A 12 x 10 press handles left-chest, sleeve and youth prints; a 15 x 15 press covers most adult fronts; 13 x 19 prints need a 16 x 20 press. Our what size heat press do I need guide covers each size.

Sizing designs in your software

Most design apps let you set an exact canvas size. A few habits keep sizes accurate:

• Set the canvas to the print size, not the paper size. An 11 x 11-inch adult front on 13 x 19 paper starts as an 11 x 11-inch canvas.
• Work at print resolution. 300 pixels per inch at final size is a common target, so an 11-inch-wide design is about 3,300 pixels across.
• Lock the proportions when you scale, so a logo doesn't stretch.
• Save size presets for your usual placements (adult front, youth front, left chest, sleeve) so every order starts consistent.
• Mirror at print time, not in the file, so you don't accidentally mirror twice.

Placement measurements at a glance

Placement depends on the shirt cut, so check on the actual blank with a paper test.

Hoodies, sweatshirts and tank tops

Hoodies and sweatshirts have less flat space than tees. The front pocket on a pullover hoodie limits a front print's height, so many designs stop above the pocket; a zip hoodie splits the front entirely, which makes left-chest and back prints the usual choice. Polyester sweatshirts take sublimation well, but keep thick seams and the pocket edge out of the pressing area or use a pressing pillow.

Tank tops and fitted women's cuts have a narrower chest, so scale front designs down from the adult chart. Transfer Express notes that form-fitting junior shirts use a smaller transfer than standard adult shirts.

Common mistakes

• Using one size for every shirt. An 11-inch design swallows a toddler tee and looks small on a 3XL.
• Printing an adult front on letter paper. You can't fit 11 inches across an 8.5-inch sheet.
• Placing the design too low. Designs placed near the stomach look off; start near the chest.
• Printing over seams. Seams lift the paper, causing pale lines; keep designs off them or use a pressing pillow.
• Forgetting to mirror. Text reads backward after pressing.

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