Custom 3.5x5 Flat Card Printing for Invitations & Announcements
With premium finish options, custom 3.5x5 flat cards are perfect for everything from event invitations and dinner parties to save-the-dates, announcements, thank-you cards, and RSVPs. Their compact size and professional look make them a popular choice for both personal and creative use, including weddings, small business branding, and artist enclosure cards.
Using the latest digital printing technology, we produce all flat cards in full color with edge-to-edge (borderless) printing. Margins are only added if they appear in your original artwork. Brides, mothers, artists, illustrators, and small business owners nationwide rely on our high-quality flat card printing, fast turnaround, and affordable pricing every day. All cards are printed in the United States on sustainably sourced cardstock.
3.5x5 Flat Card Features
- Full color, full bleed: Both sides can be printed edge-to-edge in vibrant CMYK color.
- Premium cardstock options: Durable and visually stunning finish choices for retail, mailing, or gifting.
- Sustainably sourced materials: Cardstocks are responsibly produced and acid-free.
- Pre-production artwork review: A real human inspects every file before printing.
- Free blind shipping: Plain packaging with no Printkeg branding for easy resale.
- Fast turnaround: Most orders ship within 1–2 business days, with rush production available.
Matching Envelopes for 3.5x5 Flat Cards
Pair your 3.5x5 flat cards with our Matching Envelopes, sized automatically to fit your card order. Choose from three classic colors:
- White — Clean, classic, and versatile. Pairs with any card design.
- Natural — Soft off-white with a warm, refined tone. Popular for weddings and elegant events.
- Kraft — Earthy brown craft paper finish. A favorite for rustic, vintage, and modern designs.
Envelopes are sold separately as an add-on so you can choose the color that fits your design. Add Matching Envelopes to your cart along with your card order — we'll size them to match automatically. Volume pricing is available, with the cost per envelope decreasing as quantity increases.
Best Uses for 3.5x5 Flat Cards
3.5x5 flat cards are a versatile and affordable printed format ideal for personal, professional, and creative applications. Their compact size, premium cardstock options, and full-color printing make them a popular choice for short-form messaging, keepsake designs, and stationery suites.
- Wedding & Event Invitations — Perfect for save-the-dates, rehearsal dinner invites, RSVP cards, and bridal shower announcements.
- Thank You & Appreciation Cards — A polished way to send handwritten notes after events, purchases, or client interactions.
- Art Prints & Illustration Cards — Artists commonly use 3.5x5 flat cards to sell mini art prints, postcards, or gallery takeaway pieces.
- Business & Brand Inserts — Ideal for packaging inserts, discount cards, referral notes, or brand storytelling pieces.
- Announcements & Milestones — Great for baby announcements, graduation notices, holiday greetings, and personal milestones.
- Product Info or Care Cards — Commonly included with handmade goods, apparel, candles, artwork, and specialty products.
- Photography Proofs & Mini Prints — A popular format for photographers offering small prints or proof cards.
- Handwritten Notes & Correspondence — The size is comfortable for writing, especially when paired with matte or textured cardstock.
Perfect for RSVP Cards & Invitation Inserts
Our 3.5x5 flat card printing is one of the most popular sizes for RSVP cards, response cards, and wedding invitation inserts. The compact format fits neatly inside standard 5x7 (A7) invitation envelopes while providing enough space for guest names, meal selections, and response details.
Whether you're printing wedding RSVP cards, rehearsal dinner inserts, accommodation details, or small enclosure cards, the 3.5x5 size keeps your stationery set coordinated and professional.
- Standard size for RSVP and response cards
- Fits inside 5x7 (A7) invitation envelopes
- Affordable to print and mail
- Clean layout for names, attendance, and meal options
Pro Tip: Pair 3.5x5 RSVP cards with 5x7 (A7) flat invitation cards to create a cohesive wedding or event invitation suite.
Choosing the Right Flat Card Size
Not sure which size fits your project? Here's how 3.5x5 flat cards compare to our other flat card and invitation sizes:
- 3.5x5 Flat Cards — The most compact and affordable option. Best for RSVPs, enclosure cards, mini art prints, and packaging inserts.
- 4.25x5.5 (A2) Flat Cards — A classic mid-size format with more room for artwork and information. Ideal for thank-you notes and small invitations.
- 5x7 (A7) Flat Cards — Our largest flat card size, perfect for full invitation suites, photo cards, and detailed designs.
Quick tip: Choose 3.5x5 flat card printing when you need a compact, mailable format for short-form messaging or as part of a larger invitation suite. For more design space or full invitations, consider 4.25x5.5 (A2) or 5x7 (A7) flat cards instead.
3.5x5 Flat Card FAQ
What size are RSVP cards?
Most RSVP cards are 3.5x5 inches. This size fits neatly inside 5x7 (A7) invitation envelopes and provides enough space for response details.
What's the difference between flat cards and folded cards?
Flat cards are single-panel printed pieces, ideal for invitations, RSVPs, and short messages. Folded cards have a crease down the middle and provide interior writing space, ideal for handwritten notes and detailed messages.
Do 3.5x5 flat cards come with envelopes?
Envelopes are sold separately as a customizable add-on. Add our Matching Envelopes to your cart in White, Natural, or Kraft, and we'll size them to fit your 3.5x5 cards automatically.
Can I order a sample before committing to a large order?
Yes — for large or important projects, we recommend ordering a digital proof so you can review your design before production begins. Contact us at contact@printkeg.com to discuss proofing options for your project.
