What size should a DTF transfer be for each shirt size?

A DTF transfer prints at the size of the file. That makes one shirt simple and an order of mixed sizes fiddly: the same design wants a different print width on a toddler tee, a youth medium and an adult 3XL, and pressing an adult-sized transfer on a small shirt runs the print into the seams. Printers and gang sheet services ask for each size as its own file, at 300 dpi.

There is no single standard. Transfer printers publish their own charts, and their numbers differ by an inch or so. Below is what three printers' published charts said when we read them on 27 October 2026, and the width the DTF size run starts each size at.

Print widths by shirt size

All widths are the width of the print, in inches.

• Baby onesie: 4 to 5 on the one chart that lists it. The size run starts at 4.5.
• Toddler, front: 4 to 7. Starts at 6.
• Youth S, M and L, front: 7 to 9 on two charts; the third starts youth XS and S at 6 to 8. Starts at 7, 8 and 9.
• Adult S and M, front: 9 to 12 across the three charts. Starts at 10 and 10.5.
• Adult L and XL, front: 10 to 12. Starts at 11 and 11.5.
• Adult 2XL and 3XL, front: 12 to 14 on two charts; the third keeps 2XL at 10 to 12. Starts at 12 and 12.5.
• Left chest: 3 to 4.5. Starts at 3.5.
• Sleeve: 2 to 4. Starts at 3.
• Full back, adult: 10 to 13. Starts at 11.
• Back neck label: 2 to 3 on the one chart that lists it. Starts at 2.5.

Check your own printer's chart before you order, and change any width that differs. Every width in the size run can be changed.

The height follows the design

Printers size shirt prints by width, so the height comes from the shape of your design. A square badge 10 in wide is 10 in tall. A tall design at an adult width can run further down the shirt than you want. The size run has a setting for the tallest a print may be: any size that would pass it is made narrower instead, keeping its shape.

Will your file be sharp enough at each size?

The files come out at 300 dpi, but a picture does not gain detail by being enlarged. What matters is how many of your design's own pixels land on each inch of the print. Divide the width of the visible part of the design, in pixels, by the print width in inches:

• A design 3,000 pixels wide has 300 pixels per inch at 10 in, and 240 at 12.5 in.
• A design 1,500 pixels wide has 150 pixels per inch at 10 in, and 120 at 12.5 in.

Under 200 per inch, a common rule of thumb, edges start to look soft on film. The size run shows the figure for every size you tick and warns for the ones under 200. Its own sample, for example, has 304 per inch at Adult S (10 in) and 264 at Adult XL (11.5 in), so all four starting sizes are fine. For a file that is too small, start from a bigger original, or enlarge it with upscale for print.

Step by step

1. Start from a transparent PNG. If the background is not transparent, the whole rectangle prints. Clear it first with the background remover. For shadows, soft edges and halos that print badly on film, run it through DTF-ready PNG too.
2. Drop it on the DTF size run. It is read and resized in your browser, and nothing is uploaded.
3. Tick the sizes you are pressing. Adult S to XL are ticked to start. Baby, toddler and youth sizes, 2XL and 3XL, left chest, sleeve, full back and a back neck label are there too.
4. Check each width against your printer's chart and change any that differ.
5. Look at the run side by side. Every size is drawn to the same scale, so you see the jump from youth to adult before you print.
6. Download each size. Each one is a transparent 300 dpi PNG with the print size written into the file and the size in its name, like design-adult-m-10.5in.png, so nothing gets mixed up at the press.
7. Lay them out for printing. Add the files to the gang sheet builder, or send them to your printer as they are.

What a size chart cannot tell you

• Shirt cuts differ. A fitted shirt and a boxy one of the same size leave different room. If you are unsure, print the file on paper at 100 percent and hold it against a real shirt.
• Printers differ. The widths here are starting points inside published ranges, not a standard.
• Detail does not grow. A small file stays soft at a big size, whatever dpi the file says.

For a team order with a different name and number on each shirt, the team names and numbers tool puts every name and number on one gang sheet from a pasted roster.