T-shirt design placement & size guide (with measurements)

July 12, 2026

Nothing says "first shirt I ever made" like a design that's two inches too low. Placement and sizing are where most new print-on-demand sellers lose the professional look — not the artwork itself. The rules below are the standards screen printers have used for decades, with the exact measurements, so you can stop eyeballing it.

The print area: what you're working with

Most print-on-demand providers print within a maximum area of roughly 12 × 16 inches on an adult tee (some go slightly larger). Everything below positions your design inside that zone. Two anchor lines matter:

The collar seam — vertical placement is measured down from here.
The center line — an imaginary line from the middle of the collar to the hem. Almost every placement centers on it.

Center chest — the standard placement

Width: 9–12″ for adult sizes — about 60–70% of the chest width. Statement designs sit at the top of that range, subtler graphics at the bottom.
Vertical: top of the design 2.5–3″ below the collar seam.
Horizontal: dead center on the center line. Even ½″ off-center is visible from across a room.

The classic mistake is printing too low. Design tools center artwork on the print file, and the print file covers the whole torso — so "centered" in the file means "stomach" on the body. Anchor to the collar, not the canvas.

Left chest — the logo placement

Width: 3–4″. Bigger reads as a small center print gone astray.
Position: the wearer's left (viewer's right on a mockup), top about 2.5–3.5″ below the collar seam, centered between the collar and the armpit seam — where a polo crest sits.

This is the go-to for brand merch and uniforms. Pair it with a large back print for the classic contractor/crew look.

Back prints

Full back: same sizing as center chest (9–12″ wide), top about 4–5″ below the collar so it clears the shoulder blades.
Back neck (locker) print: a small 2–3″ wide mark directly below the collar — usually a logo or wordmark. Sits about 1″ below the seam.

Garment-specific adjustments

Placement shifts with the garment. A few that trip sellers up:

Hoodies: the pocket cuts the print zone short — keep front designs 10″ wide or less and above the pocket, or use the classic across-the-chest placement.
Tank tops: the narrow front means 7–9″ wide reads better than a full-size print.
Ladies' fitted tees: scale everything to about 80% of unisex sizing and raise the placement slightly — a 12″ print overwhelms a fitted cut.
V-necks: measure from the bottom of the V, not the shoulder line, or the design crowds the neckline.

Your design file: the numbers that matter

4500 × 5400 pixels at 300 DPI — the safest all-platform spec. It's Amazon Merch's required size and exceeds what Printful, Printify, and Gelato ask for.
Transparent PNG, always — see our step-by-step mockup guide for why this matters when previewing.
sRGB color — CMYK files shift colors unpredictably on DTG printers.
Design at full print size even for a small placement. Providers scale down cleanly; scaling up gets blurry.

Check placement before you publish

Numbers get you close; your eyes make the final call. Drop your design into the free mockup editor, position it with these measurements in mind, and look at the result at thumbnail size — that's how buyers on Etsy and Shopify will first see it. If it reads clean and centered at 300 pixels wide, it will look right on the shirt.

Frequently asked questions

How big should a design be on a t-shirt?

A standard center-chest print is 9–12 inches wide for adult sizes — roughly 60–70% of the chest width. Most print-on-demand providers support a maximum print area of about 12 × 16 inches on an adult tee.

How far below the collar should a t-shirt design be?

Place the top of the design about 2.5–3 inches below the collar seam on adult shirts. Any lower and the design drifts toward the stomach, which is the most common placement mistake.

What size should a t-shirt design file be?

4500 × 5400 pixels at 300 DPI is the safest all-platform spec — it meets Amazon Merch requirements and exceeds what Printful, Printify, and most other providers need. Always use a transparent PNG.

Where does a left-chest logo go?

A left-chest logo is typically 3–4 inches wide, placed on the wearer's left side, with its top about 2.5–3.5 inches below the collar seam — roughly where a polo crest sits.