Mini Slimline Cards Made Easy: Free Printable Guide for Card Makers

Hi, crafty friends! Mini slimline cards are a fun and versatile twist on traditional cardmaking, perfect for creating stylish designs in a smaller format.

In this post, you’ll find everything you need to get started with mini slimline cards—including a free printable guide packed with measurements, layering sizes, envelope suggestions, and answers to frequently asked questions (FAQ). Whether you’re new to this card size or looking for quick reference, this guide will help you create beautiful mini slimline cards with confidence.

Don’t miss last week’s Slimline Card Making Made Simple, it includes a free printable guide, too!

MINI SLIMLINE CARD SIZES

Just like larger slimline cards, there’s no single ‘universal’ size for mini slimline cards. Instead, discover a few creative options! Here’s the most common mini slimline card sizes, layer measurements and the best [standard North American] envelope sizes to use…

• 3″ x 6″
  • Most popular! Utilizes 6″ x 6″ designer paper; allows room for layers and embellishments with recommended envelopes
  • Card Base: 6″ x 6″, score on either side at 3″
  • Layers:
    • 2-3/4″ x 5-3/4″
    • 2-1/2″ x 5-1/2″
    • 2-1/4″ x 5-1/4″
  • Envelope #7 Coin: 3-1/2″ x 6-1/2″ (best fit, opens on narrow end)
    • Shop what I use under my Favorite Amazon Finds
  • Envelope #6-3/4 Business: 3-5/8″ x 6-1/2″ (oversized, opens on long side like a traditional envelope)

• 3-1/4″ x 6-1/4″
  • A slightly larger variation on above! Still utilizes 6″ x 6″ designer paper
  • Card Base: 6-1/2″ x 6-1/4″, score on long side at 3-1/4″
  • Layers:
    • 3 x 6
    • 2-3/4″ x 5-3/4″
    • 2-1/2″ x 5-1/2″
  • Envelope #7 Coin: 3-1/2″ x 6-1/2″ (tighter fit than above size, best for single layers or minimal embellishments)
  • Envelope #6-3/4 Business: 3-5/8″ x 6-1/2″ (traditional envelope format, opens on long side)

• 3-1/2″ x 6″
  • A little less slim! Still utilizes 6″ x 6″ designer paper
  • Card Base: 7″ x 6″, score on slong side at 3-1/2″
  • Layers:
    • 3-1/4 x 5-3/4
    • 3 x 5-1/2
    • 2-3/4″ x 5-1/4″
  • Envelope #6-3/4 Business: 3-5/8″ x 6-1/2″ (may be a little tight on narrow side)

FAQ

What is a mini slimline card? It’s a smaller version of the popular slimline card style… tall and slender, but more compact than a standard slimline (which is usually 3-1/2″ x 8-1/2″).

Why are mini slimline cards popular? They’re cute, quick to make, use less cardstock, and give a fresh layout option for stamping and die-cutting. The layout can be used both vertically and horizontally.

Do I need special paper crafting supplies? No! Almost all paper crafting products can be adapted to mini slimline cards.

What’s the best envelope to use for mini slimline card sizes? Choose from #7 Coin, which opens on the narrow end or #6-3/4 business, which opens on the long side, like a traditional envelope. Pick your favorite and size your card to what you have!

What if I don’t have an envelope to fit? Make your own with coordinating paper! (The 3-In-1 Punch Board found in my Favorite Amazon Finds makes it super easy!)

Is additional postage required to mail a mini slimline card? No! As long as the envelope is a minimum of 3-1/2″ wide, standard postage applies with the United States Postal Service! (thickness limitations still apply)

MINI SLIMLINE CARD TUTORIAL

Inspiration continues for our Suite of the Month: Floral Impressions. The featured cards are a CASE of a beautiful A2 card I saw by Stampin’ Up! Designer Cindy Schuster for a Stampin’ Fancy Friday Challenge (see her card here on Facebook or here on Instagram)… I simply adapted it to a mini slimline size!

MEASUREMENTS (width x length) & INSTRUCTIONS

• Card Base: 6-1/2″ x 6-1/4, score on long side side at 3-1/4″ [Cloud Cover]
• Embossed Layer: 3″ x 6″ [Cloud Cover]
  • Emboss on Stampin’ Cut & Emboss Machine (or similar) with Pressed Flowers Embossing Folder; bend opposing corners back. Adhere centered on card front.
• Inside Sentiment Panel: 2-3/4″ x 5-3/4″ [Basic White]
• With the Impressions Abloom Dies, cut two larger flowers and one set of small flowers [Basic White Thick]; cut one leaflet, two leaves and two flower centers [Secret Sea]
• With Stylish Shapes Dies, cut one 2-1/2″ circle [Woven Textures Designer Paper] and one small banner [Basic White Thick]
• Stamp sentiment on banner [Layers of Beauty Stamps; Secret Sea Classic Ink Pad]
• Embellish with 2025-27 In Colors Flat Pearls [Cloud Cover]

BONUS COLOR IDEA

Card Above- Reverse the main colors [Cloud Cover & Secret Sea] and add ‘Strawberry Slush’ for a lush pop of color. (get all three colors in this cardstock pack)

Don’t you love how well the 2025-2027 In-Colors play together?! And did I mention products featuring these colors are on sale this month?! wooHOO

Notice this card features the de-bossed (recessed) side of the embossing folder, rather than the em-bossed side shown on the top card? Double the fun! Find this sentiment in Cheers & Sips.

SUPPLIES TO MAKE FEATURED PROJECT

Click any image to add items to your Stampin’ Up! shopping cart …happy crafting!

Floral Impressions Suite Collection (English)

[165617]

Woven Textures 12" X 12" (30.5 X 30.5 Cm) Designer Series Paper

[165560]

Stylish Shapes Dies

[159183]

Layers Of Beauty Photopolymer Stamp Set (English)

[163514]

2025–2027 In Color™ Flat Pearls

[165192]

2025–2027 In Color™ 8 1/2" X 11" Cardstock

[165623]

Basic White 8 1/2" X 11" Thick Cardstock

[159229]

Basic White 8 1/2" X 11" Cardstock

[166780]

Secret Sea Classic Stampin' Pad

[165285]

Paper Trimmer

[152392]

Stampin' Cut & Emboss Machine

[149653]

Stampin' Dimensionals

[104430]

Multipurpose Liquid Glue

[110755]

BONUS INSPIRATION

Here’s a popular mini slimline card idea from the past…

Substitute the flowers in the Impressions Abloom Bundle and add your favorite horizontal sentiment!

Have lots of fun making mini slimline cards for your own family & friends ❤️

Did you find this article helpful? Leave a comment below… I love hearing from you!

Join me next week when I share how to make two cards -for both men and women- with this month’s featured Impressions Abloom Suite and a fabulous new card design!

THIS WEEK’S SAVVY SHOPPER SPECIALS

IMPRESSIONS ABLOOM TUTORIALS
Free Gift with $50* Stampin’ Up! Order Aug. 1-31, 2025 or Order Direct with Immed. Download

DETAILS

SAVE ON 2025-2027 IN COLOR PRODUCTS Including cardstock, ink pads, refills, markers, designer paper, ribbon, embellishments & more!

SHOP SALE

LAST CHANCE CLEARANCE UPDATE
Save up to 60% off retiring products before they’re gone for good- NEW ADDITIONS!

SHOP SALE

SAVE FOR FUTURE REFERENCE

Hover over the graphic below and click the red Pinterest SAVE logo in the upper left corner to save this to your favorite Pinterest board! Enjoy quick & easy access to the tutorial whenever you want.

BEFORE YOU GO

• Don’t miss the free companion ‘Slimline Card Making Made Simple’ Guide
• Want more ideas for the Floral Impressions Suite?
  • Masculine Slimline Card
  • Sweet & Simple Sunflower Card
  • Impressions Abloom Tutorial Bundle by The Papercraft Collective Design Team
• Visit the GALLERY for more card ideas and free tutorials
• Want the latest project ideas delivered to your in-box? Subscribe Here (US only)
• Enjoy this Mini Slimline Cards Made Easy Guide? Let me know by commenting below!

Thanks for shopping with me and supporting our small family business!