If you’re like most Teachers Pay Teachers sellers, you’ve probably spent countless hours crafting high-quality resources to share with other educators. Yet sometimes, despite your efforts, your resources just aren’t getting the clicks or sales you expected. Ever stopped to consider it might be your TPT thumbnail size that’s holding you back?
Believe it or not, thumbnail size matters—a lot. It’s the very first thing potential buyers see. Get it right, and you instantly stand out. Get it wrong, and you could lose a potential sale in seconds.
Why Thumbnail Size Matters on TPT
The standard TPT thumbnail size is 750 x 750 pixels, and it’s set as a square for good reason. Square thumbnails are optimized for visibility, meaning your resource can easily catch a teacher’s eye. If your thumbnail is too large, too small, or rectangular, your resource might appear cropped or distorted, giving off an unprofessional first impression. This subtle detail could be the reason your exceptional resource is overlooked.

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Correctly sized thumbnails lead to higher visibility, increased clicks, and ultimately, more sales. It’s a simple tweak, yet many sellers overlook it.
Common Thumbnail Sizing Mistakes TPT Sellers Make
One common error is using rectangular images that TPT automatically crops into squares. This can lead to important text or visuals being cut off. Another mistake is low-resolution images—these appear blurry or pixelated, leading buyers to question the quality of the resource itself. Lastly, overcrowding thumbnails with too much text makes readability almost impossible, especially when viewing from mobile devices. Ensuring your TPT thumbnail size is optimal helps you avoid these common pitfalls.
How to Correctly Size Your Thumbnails
Creating the perfect thumbnail doesn’t have to be complicated. Start by designing your thumbnails directly in a square canvas (750 x 750 pixels) using tools like Canva or PowerPoint. This ensures you control exactly how your thumbnail appears on the TPT platform. Include clear, concise text and visually appealing graphics that clearly represent your resource.

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For instance, if your resource is about genetics, include bold text like “Easy Genetics Activities” with high-contrast colors. Avoid tiny fonts and cluttered images. Always check your thumbnail preview on different devices to ensure optimal readability and visual appeal.
Real-Life Results from Proper Thumbnail Sizing
Take, for example, a TPT seller who previously used incorrect thumbnail sizing. Once they adjusted their thumbnails to match the recommended TPT thumbnail size, their views increased by 40%, leading directly to higher conversions. A properly sized thumbnail not only attracts attention but conveys professionalism and reliability.
Getting your TPT thumbnail size right is a simple step with significant rewards. It instantly improves the visual appeal of your products, attracts more potential buyers, and increases your overall conversion rate.
Want to go even deeper into creating thumbnails that consistently convert? Join the waitlist for Thumbnails That Convert, your ultimate guide to thumbnails that boost sales and visibility on TPT.

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