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Colossal postcards 6 x 11

Make a bold impression with 6 x 11 colossal postcards—our largest format for maximum visibility.

Ideal for high-impact direct mail campaigns that demand attention.

Colossal 6 x 11 Postcards: Oversized Marketing That Gets Noticed

When your message needs to stand out in a crowded mailbox, 6 x 11 postcards are the perfect solution. These oversized mailers are impossible to miss, giving you more space to showcase your brand, tell your story, and deliver strong calls-to-action. Despite their size, they’re still eligible for USPS bulk and EDDM rates, offering a high return on your marketing investment.

Colossal postcards are especially effective for product launches, grand openings, and sales events. With more room to work with, you can include multiple promotions, highlight different service categories, or feature bold imagery that catches the eye.

This format is a favorite among marketers who want maximum impact with a single piece of mail. Use both sidesto deliver a visually rich experience that converts interest into action.

Why Colossal Postcards Drive Direct Mail ROI

Colossal postcards offer one of the largest print formats that still qualify for USPS direct mail discounts. The 6 x 11 size commands attention, helping your message rise above the competition and get read. This makes it easier to convert passive recipients into active customers.

You also gain additional space to include more than one offer or campaign message. For example, you could feature three different services, each with its own headline and image—all on a single card. The increased design flexibility opens up new creative possibilities.

Printed on thick, high-quality cardstock, our colossal postcards are built to impress. Add finishing options like UV gloss, matte coating, or uncoated texture to match your brand’s look and feel. With room to say more, you’ll make a stronger, more lasting impact.

Best Use Cases for 6 x 11 Colossal Postcards

Colossal postcards are often used by franchises, large retail brands, and service businesses that want to saturate a local area. Auto dealerships use them to promote weekend sales, service coupons, and loyalty programs. Healthcare offices and dental practices mail them to announce openings, specials, and community outreach events.

Real estate professionals use this size to highlight multiple listings or showcase high-end properties with stunning visuals. Fitness centers and gyms rely on the format to launch seasonal challenges or promote free trials across neighborhoods.

Thanks to EDDM eligibility, you can send these large-format postcards to every home in your target ZIP codes—no list required. Whether you’re advertising a single event or building awareness for your business, colossal postcards give your brand a big, bold voice.