Choosing the right size comes down to five things. We walk through these with customers regularly when a file comes in without dimensions specified.
Step 1 — Start with placement. Decide where the design goes before you think about size. Full front, left chest, sleeve, back — each location has a natural size range. Placement determines the ceiling. A left chest design can't be 10" wide regardless of how the artwork looks.
Step 2 — Measure the print area. Measure the actual surface where the design will sit, avoiding seams, edges, pocket openings, and anything curved. That measurement is your maximum size. Don't design to the full dimension — leave at least ½" margin on each side.
Step 3 — Match the design shape. A wide, short logo needs to be sized by width. A tall, vertical design needs to be sized by height. Don't force a square size onto a design that isn't square — it either gets too small or too big in one direction.
Step 4 — Think about viewing distance. A left chest logo is seen from 1–2 feet away in conversation. A full back design is seen from across a room. Close-up placements can be smaller. Designs that need to read at a distance need more width and simpler artwork.
Step 5 — Test before you order a full run. Print the design at full size on paper, cut it out, and hold it on the garment. This is the fastest way to catch a sizing problem before it's pressed onto 48 shirts. We recommend this for any order over 12 pieces.