Marcus Chen
Marcus Chen Senior Content Strategist at 4OVER4.COM
Question

What size thank you card works best for business use?

Answer

The right size depends on how the card reaches your customer, whether it is mailed on its own or tucked inside a package.

UseRecommended sizeWhy
Client appreciation (mailed)5 x 7 in folded, thick stockStrongest, most personal impression
Packaging insert3.5 x 5 in flatClean, cost-effective, fits in the box

For a note that stands on its own, go larger and heavier. For an insert that rides along with an order, a compact flat card keeps things tidy and affordable.

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