RatioReady
Platform Guide

Print-Ready Images for Spring (Teespring)

Spring — formerly Teespring — is the go-to merch platform for creators, YouTubers, and social media personalities. This guide covers exact upload specs for every product type, plus the common file mistakes that get your designs rejected.

Spring — formerly Teespring — is the go-to merch platform for creators, YouTubers, and social media personalities. This guide covers exact upload specs for every product type, plus the common file mistakes that get your designs rejected.
Built for sellers on
Etsy Amazon Redbubble Printify Society6

Spring (formerly Teespring, rebranded in 2021) is built for creators — it's the platform YouTubers, Twitch streamers, and Instagram personalities use to sell merch directly to their audience without needing an Etsy shop or storefront. If you have an audience, Spring handles the fulfillment; you handle the designs.

Unlike Etsy or Redbubble's discovery-driven model, Spring is audience-first: buyers come from your channel or social profile, not from platform search. That means design quality matters more than keyword optimization — and file specs matter a lot, because a rejected upload kills your launch momentum. This guide covers every product type with exact pixel dimensions, DPI requirements, and format rules. See also Print-Ready Images for Redbubble for the discovery-driven alternative.

§File requirements

Product Type Print Area (px) DPI Format Notes
T-Shirt (front print) 4,500 x 5,400 300 PNG (transparent) Most popular Spring product; transparent bg required so fabric color shows through
Hoodie (front print) 4,500 x 5,400 300 PNG (transparent) Same print area as t-shirt; same transparency rules apply
Wall Art Poster 8x10" 2,400 x 3,000 300 JPG / PNG Entry-level size; fine for bedroom / desk decor
Wall Art Poster 11x14" 3,300 x 4,200 300 JPG / PNG Popular gallery size
Wall Art Poster 16x20" 4,800 x 6,000 300 JPG / PNG Statement wall piece; needs a high-res source
Wall Art Poster 24x36" 7,200 x 10,800 300 JPG / PNG Largest standard poster; AI upscaling almost always needed from digital art sources
Canvas Print Same as poster + wrap area 300 JPG / PNG Extends artwork or solid color 1–2" beyond trim for gallery-wrap edges
Phone Case ~1,200 x 2,000 (varies by model) 300 PNG (transparent) Dimensions vary by device model; check per-model spec in Spring's product builder
Tote Bag 4,500 x 4,500 300 PNG (transparent) Square print area; design centered and transparent so bag color shows around it
Mug 11oz 2,700 x 1,050 300 JPG / PNG Full-wrap mug; leave handle-area margin (~1.25") free of critical detail
Sticker Varies by shape 300 PNG (transparent) Transparent PNG required for die-cut shape; Spring traces the alpha edge

Spring defaults to 300 DPI across all products. Apparel requires transparent PNG (no white background) so the garment color shows through the design. Wall art posters use standard US imperial sizing (8x10 through 24x36).

Spring for creators vs. Etsy sellers — two different models

Spring and Etsy both sell print-on-demand products, but they operate on fundamentally different models:

Spring (formerly Teespring) Etsy (Printful / Printify)
Traffic sourceYour audience (YouTube, Instagram, TikTok)Etsy search + discovery
Product focusApparel-first (t-shirts, hoodies, mugs)Wall art, home goods, apparel
Store setupIntegrated merch shelf (YouTube Studio linkable)Standalone shop, SEO optimization needed
FulfillmentUS + EU, Spring-managedUS + EU + global via partner network
Best forCreators with 10k+ engaged followersDesigners building from cold start

If you have an audience, Spring can turn a single YouTube video about your merch launch into immediate sales — no keyword research needed. If you're starting from zero audience, Etsy's discovery model is more likely to generate organic traffic while you grow.

Many creators do both: Spring for the merch-shelf link in their YouTube description, Etsy for evergreen discoverability. Same design files, two sales channels.

Related guides: Redbubble print specs, wall art converter, free DPI checker, Etsy mockup generator.

Common Spring upload failures

Spring's upload validator catches these issues consistently:

  • White background on apparel. The most common reason a t-shirt or hoodie design looks wrong after printing. Spring needs a transparent PNG for apparel — the white bg you see in your design tool becomes a white rectangle on the garment. Export as PNG with transparency enabled, not as JPG.
  • Low DPI (72 or 96 from web exports). Saving from a browser, Canva's free export, or a web screenshot produces 72–96 DPI. Spring's quality check flags anything below 150 DPI and the print will look blurry on large products. Always export at 300 DPI — or use a tool like RatioReady's free DPI checker to verify before uploading.
  • File too large (over 10MB for apparel). Spring's apparel limit is 10MB per file. A large PNG with transparency can easily exceed this. Compress the PNG with tools like pngquant (lossless) or reduce color depth to 8-bit if your design uses a limited palette.
  • Wrong pixel dimensions for poster size. Uploading a 1000x1500px file for a 24x36" poster produces a blocky, pixelated print. Use the pixel dimensions in the table above, or let RatioReady's wall art converter upscale and output at the correct size.
  • CMYK color profile on uploads. Spring's pipeline expects sRGB. If your design software exported as CMYK (common in print-oriented Adobe workflows), convert to sRGB before upload — CMYK to RGB double-conversion causes washed-out, unexpected colors.
  • Missing transparency on stickers. Sticker die-cuts trace the alpha channel edge of the PNG. A white background means a square sticker, not a shaped one. Every sticker upload must be a transparent PNG with the artwork on a clear background.

Spring vs. Redbubble vs. Merch by Amazon

Three creator-friendly POD platforms, three different growth models:

Spring Redbubble Merch by Amazon
Best traffic sourceYour social audienceRedbubble organic searchAmazon search
Platform marketplace?Limited (Spring Discover)Yes — strongYes — very strong
Apparel qualityGood (Gildan / Bella+Canvas)GoodGood (Hanes / Anvil)
Wall art / postersYes — US standard sizesYes — wide rangeLimited
Profit margin controlYes — set your ownYes — set your ownFixed tiers
Setup barrierLow — open signupLow — open signupHigh — invite/waitlist

Spring wins when you have an audience to point at a merch link. Redbubble wins when you want passive income from design discovery. Merch by Amazon wins when your niche has strong Amazon search intent — but the waitlist makes it harder to start. Most active POD sellers run Spring + Redbubble in parallel: Spring for fans, Redbubble for strangers.

Wall art on Spring — getting the pixel dimensions right

Wall art posters are one of Spring's strongest non-apparel products, especially for creators whose content is visual (photography, illustration, gaming, fan art). The file requirements are straightforward but the pixel math catches people off guard.

Spring uses US standard wall art sizes: 8x10", 11x14", 16x20", and 24x36". At 300 DPI, the required pixel dimensions are:

  • 8x10" → 2,400 x 3,000 px
  • 11x14" → 3,300 x 4,200 px
  • 16x20" → 4,800 x 6,000 px
  • 24x36" → 7,200 x 10,800 px

Most digital art and AI-generated images are created at screen resolution (1024x1024px, 1024x1536px, etc.) — nowhere near the 7,200x10,800px needed for a 24x36" print. You need to upscale before uploading, or the print will look visibly pixelated.

Upscale + resize for Spring wall art in one step

Drop your source image into RatioReady's wall art converter. Select the US standard ratios (4:5 portrait for 8x10 and 16x20, 11:14 for 11x14, 2:3 for 24x36). The AI upscale chain runs first, then each ratio is center-cropped and exported at exactly the pixel dimensions Spring needs — with 300 DPI metadata embedded. Download the ZIP and upload each file to the corresponding Spring product.

Related: mockup generator for Spring listing preview images, free DPI checker to verify your files before uploading.

Dimension calculator

Common print sizes

DPI (dots per inch)

Print size (inches)

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Frequently asked questions

Related tools

Get your Spring files print-ready

Upscale + resize to exact Spring dimensions with 300 DPI embedded. 75 free Creative Credits on signup.

Stamped print-ready

Tally checks every file against the platform spec on this page before it leaves the press. If it's stamped, it uploads clean.