Everyone has that one t-shirt. The one you grab first out of the drawer. Maybe it’s from a concert that changed your life, or a family reunion you’ll never forget, or maybe it just has some quality you can’t quite name. It fits right, looks right, and feels like yours.
If you’re designing a custom t-shirt for your business, organization, or event, you’re probably hoping to create that kind of shirt. The good news? It’s absolutely doable. But getting there takes real thought beyond slapping a logo on fabric. From your first sketch to the finished print, every decision matters.
Here at RiverCity Screenprinting & Embroidery in San Marcos, we’ve helped thousands of customers turn rough ideas into shirts people actually want to wear. This guide walks through the entire custom t-shirt design process, with practical tips we’ve picked up along the way.
Start With a Clear Concept
Before you open any design software, grab a pencil and paper. Seriously. Sketching by hand is still the fastest way to explore ideas without getting bogged down in technical details.
Ask yourself a few questions:
- What’s the purpose of this shirt? Promoting a business? Commemorating an event? Building team identity?
- Who’s going to wear it? Athletes, employees, students, customers at a trade show?
- What’s the tone? Clean and professional? Fun and bold? Vintage and understated?
Your answers will shape everything from color choices to typography to where the design sits on the shirt. A corporate golf outing shirt needs a different approach than a local band’s merch. Know your audience before you start designing.
Sketch out a few rough ideas. They don’t need to be polished. The goal is to get different concepts on paper so you can compare them side by side. Look at three or four variations and notice what you’re drawn to. Don’t be afraid to pull inspiration from brands or designs you admire, either. Study what works about their logos, their color choices, their layout. Then make something that’s yours.
Keep It Simple (Really)
One of the biggest t-shirt design mistakes to avoid is overcomplicating things. There’s a reason the KISS principle (Keep It Simple, Stupid) gets repeated so often in design: it works.
A busy design with too many elements, colors, and text blocks will look cluttered on fabric. T-shirts aren’t posters. You don’t have a flat wall and perfect lighting. You have wrinkles, movement, and a curved surface. What reads clearly on a screen can turn into visual noise on a chest.
Focus on your core message. What’s the one thing someone should understand when they glance at your shirt for two seconds? Strip away anything that doesn’t support that single idea. If you’re promoting a 5K run, people need to see the event name, date, and maybe a graphic. They don’t need your organization’s full mission statement in 8-point font.
Some of the most iconic t-shirt designs in history are absurdly simple. Think about that.
Choosing Colors and Placement
T-Shirt Color Placement
Color decisions affect both how your design looks and how much it costs to produce. In screen printing, each color in your design requires a separate screen. A one-color print on a dark shirt is straightforward and affordable. A six-color design with gradients? That’s a different conversation entirely.
Here are some practical guidelines for t-shirt color placement:
- Contrast is everything. Light designs on dark shirts (and vice versa) read from a distance. A medium-gray graphic on a charcoal shirt will disappear.
- Limit your palette. Two to three colors often look more intentional than five or six. Constraints force better design choices.
- Consider the shirt color as part of the design. If you’re printing on a red shirt, you can use the red as a design element rather than trying to cover it up.
- Match colors to your brand. If your company uses specific PMS colors, provide those values to your printer so the final product matches your other materials.
Design Placement and Size
Where your design lands on the shirt matters more than most people realize. You’ve got options: full front, full back, left chest (the classic “pocket” position), upper back between the shoulders, sleeve prints, or combinations of these.
Here’s a trick we recommend to every customer: print your design at the actual size you’re considering, tape it to a shirt, and have someone put it on. Walk across the room. Does it read well? Does the placement look natural? You might realize the design is too large, or sitting too high, or that it works better on the back than the front.
Consider your audience when choosing size and placement:
- Athletic or performance shirts tend to look better with smaller, more understated designs.
- Promotional or event shirts benefit from larger, more visible graphics that catch attention.
- Corporate shirts usually stick to left-chest logos, sometimes with a larger design on the back.
Getting placement right before you go to print can save you from ordering hundreds of shirts that look “off.” A t-shirt design mockup, even a rough one pinned to a real shirt, is worth the five minutes it takes.
Typography That Works on Fabric
Typography can make or break a t-shirt design. What looks clean in a document or on a website doesn’t always translate to wearable design.
A few t-shirt typography tips from years of printing experience:
- Readability first. Script fonts and thin serifs can lose detail at smaller sizes, especially in screen printing. If someone can’t read it from five feet away, reconsider.
- Limit your fonts. One or two typefaces max. Mixing three or four fonts almost always looks amateur.
- Mind the size. Text smaller than about 1/4 inch tall starts to get risky in screen printing. Fine details can fill in or break down over repeated washes.
- Spacing matters. Letters that are too tight will bleed together on fabric. Give your text room to breathe, especially on textured materials.
If your design is text-heavy, consider whether all that text really needs to be there. On a t-shirt, less is almost always more.
Creating a Print-Ready Design File
Once you’ve nailed your concept on paper, it’s time to go digital. This is where a lot of DIY designers hit a wall, and that’s completely normal.
Software and File Formats
Professional screen print design files are typically vector-based, created in programs like Adobe Illustrator, CorelDRAW, or free alternatives like Inkscape. Vector files (AI, EPS, SVG, PDF) scale to any size without losing quality, which is critical for printing.
Raster programs like Photoshop work for some applications, but if you’re creating a logo or text-based design, vector is the way to go. If you must use Photoshop, work at a minimum of 300 DPI at the actual print size.
Here’s what your printer needs from your design file:
- Vector format preferred (AI, EPS, SVG, or high-res PDF)
- Fonts converted to outlines so they display correctly on any system
- Colors specified (PMS/Pantone for spot color printing, CMYK for process printing)
- Actual print dimensions noted so there’s no guesswork about sizing
If graphic design software isn’t your thing, that’s okay. Many screen printing companies, including ours, have in-house designers who can take your rough sketch or concept and turn it into print-ready artwork. You don’t need to be a Photoshop expert to get a great shirt.
Common File Mistakes
A few things that slow down the process or cause problems:
- Sending low-resolution images pulled from a website (they’ll look pixelated when enlarged)
- Using RGB color mode instead of the appropriate print color space
- Not converting fonts to outlines, which causes missing font issues
- Embedding raster images inside vector files without proper resolution
Getting your file right upfront saves time and ensures your finished shirts match what you envisioned.
Picking the Right Shirt and Fabric
Your design is only half the equation. The shirt itself plays a huge role in whether people actually wear it.
There isn’t a one-size-fits-all answer here. Different fabrics suit different purposes:
- 100% cotton is the classic choice. Comfortable, breathable, and takes screen printing ink beautifully. Great for everyday wear and most promotional purposes.
- Cotton/poly blends (like 50/50 or tri-blends) feel softer and more fitted. They’re popular for retail-style shirts and tend to hold their shape well after washing. Tri-blends in particular have that broken-in feel right out of the bag.
- 100% polyester or moisture-wicking fabrics work for athletic and performance applications, but they require different printing techniques (like sublimation) since traditional screen printing ink sits differently on synthetic fibers.
Beyond fabric, think about shirt style. Crew neck, V-neck, raglan sleeves, tank tops, long sleeves… each creates a different look and feel. Your audience should drive this choice. A fitted tri-blend crew neck sends a different message than a boxy heavyweight cotton tee.
Don’t forget to plan your size distribution. If you’re ordering for a group, you’ll need a spread of sizes. We typically recommend ordering a few extra in medium and large since those tend to go first.
Screen Printing vs. Embroidery
Two main options for getting your design onto a garment: screen printing and embroidery. Each has strengths.
Screen printing is ideal for larger designs, bold graphics, and higher quantities. The ink sits on top of the fabric and produces vivid, long-lasting colors. It’s the go-to method for most t-shirt orders and tends to be the most cost-effective option for runs of 24 or more.
Embroidery adds texture and a premium feel. It’s typically used for polos, hats, jackets, and corporate apparel where a more polished look is appropriate. Embroidered designs are extremely durable, but they work best with simpler graphics. Fine detail and small text don’t translate as well to thread as they do to ink.
Some projects use both. A company might screen print the back of a shirt with event details while embroidering a small logo on the front chest. We help customers figure out which approach (or combination) works best for their specific project.
Putting It All Together
Here’s a quick recap of the process from start to finish:
- Define your purpose and audience before you design anything.
- Sketch concepts by hand and compare options.
- Simplify ruthlessly. Cut anything that doesn’t support your core message.
- Choose colors intentionally, keeping both aesthetics and print costs in mind.
- Test placement and size by mocking up the design on an actual shirt.
- Create or commission a print-ready file in vector format with proper specs.
- Select the right garment for your audience and use case.
- Choose your print method (screen printing, embroidery, or both).
- Work with a reputable printer who can guide you through any questions.
The first time through, it might feel like a lot of decisions. But once you’ve done it, the whole process gets faster and more intuitive. Many of our repeat customers walk in with a clear vision and a ready-to-go file, and we go from conversation to finished shirts in days.
Frequently Asked Questions
Do I need to provide print-ready artwork or can you work from a rough idea?
Either works. If you have vector files (.AI, .EPS, .SVG), that speeds things up. If you’re starting with a sketch, a photo of a reference design, or just a concept in your head, our art department at RiverCity can develop it into production-ready artwork. Most custom t-shirt orders involve at least some design collaboration between the customer and our team.
How many ink colors should I use in my t-shirt design?
Two to three colors typically produces the strongest visual impact while keeping production straightforward. Each color requires a separate screen in the printing process, so more colors adds complexity. Some of the most iconic t-shirt designs use just one or two colors effectively. If your design needs full-color photographic detail, DTG (direct-to-garment) printing handles that differently than traditional screen printing.
What size should my design be on the shirt?
Standard left chest logos run 3.5” to 4” wide, full front designs are typically 10” to 12” wide, and full back prints go 12” to 14”. The best way to check is printing your design at actual size, taping it to a shirt, and having someone wear it. Walk across the room and see if it reads well. Five minutes of testing prevents ordering hundreds of shirts that look off.
Can the same design work for both screen printing and embroidery?
Sometimes, but they’re different production methods with different constraints. Screen printing handles fine details, gradients, and photographic elements well. Embroidery works best with simpler, bolder designs because stitches have physical width that limits small detail. If you need your logo on both printed tees and embroidered polos, plan a simplified version for the embroidered items.
How do I make sure the colors on my finished shirts match my brand?
Provide your exact PMS (Pantone) color values to your printer. PMS is the industry standard color matching system, and it removes the guesswork from color reproduction. If you don’t know your PMS values, our design team at RiverCity can help identify them from your existing materials. Thread colors for embroidery get close to PMS values but won’t be an exact match due to the natural properties of thread.
Ready to Bring Your Design to Life?
Got a polished vector file or a napkin sketch? The team at RiverCity Screenprinting & Embroidery is here to help. We’ve been printing custom apparel in San Marcos, TX for years, serving everyone from local bands and school groups to businesses across the Austin to San Antonio corridor.
We’ll help you choose the right shirt, dial in your design, and produce a finished product you’re proud to hand out or sell. Request a quote to get started, or stop by our shop in San Marcos to talk through your project in person.