Custom Flat Greeting Card

Looking for a simple, stylish way to deliver a personal or professional message? At Custom Boxes Lab, we create flat greeting cards that are elegant, easy to mail, and fully customizable for any occasion. Whether you’re sending holiday wishes, business thank-you notes, or event invitations, these single-panel cards offer a clean, modern presentation. So, buy flat greeting cards from Custom Boxes Lab to make every message stand out—without the fold.

Availability: In Stock

Sample Price: $0.10 per item

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    Why Custom Boxes Lab

    • Order a Sample Box for $0.10
    • Free Shipping Across the United States
    • Fast Production & Reliable Delivery
    • Free Design Support
    • Premium Quality Guaranteed
    • Transparent Pricing – No Hidden Fees
    Google Review TrustPilot

    Create Custom Boxes Quick and Easy

    Desgin Art

    Design

    Get Custom Designed in Your Desired Shape, Size and Style

    Prints

    Print

    Get Custom Boxes printed with your desired artwork and colors.

    It Done

    Get It Done

    Get Custom Boxes at wholesale prices. Low MOQs. No die or plate charges.

    Designed for Style and Simplicity

    Flat greeting cards are perfect for announcements, postcards, or personal sentiments. Their clean layout offers ample space for design, text, and custom embellishments.

    Materials

    We offer premium paper options to match your design and feel:

    • Matte Cardstock – Smooth, non-reflective, and easy to write on
    • Glossy Coated Stock – Sharp colors and a sleek finish for printed designs
    • Textured Linen or Felt Paper – Adds tactile elegance and depth
    • Recycled Stock – Sustainable and earthy with quality performance

    Sizes

    Choose from popular standards or request a custom cut:

    • 4″x6″ or 5″x7″ for classic greeting card dimensions
    • Square or panoramic formats for modern appeal
    • Custom sizes available to match your envelope or mailing style

    Printing

    Bring your message to life with vibrant, high-resolution printing:

    • Full-color front and optional back design
    • Personalized messages, logos, or illustrations
    • Edge-to-edge printing with perfect alignment

    We use fade-resistant, eco-friendly inks for lasting quality and sharp detail.

    Add-ons

    Elevate your flat card with finishing touches and packaging options:

    • Foil stamping or embossing for highlights
    • Spot UV on text or graphics
    • Rounded corners for a softer look
    • Matching envelopes with custom lining or sealing stickers

    Types of Flat Greeting Cards

    Suitable for personal, promotional, and corporate uses:

    • Holiday Cards and Seasonal Greetings
    • Thank-You or Appreciation Notes
    • Event Invitations or RSVP Cards
    • Brand Announcements or Product Launch Inserts
    • Postcard Mailers with a Premium Touch

    3Ps of Greeting Card Printing Approach

    • Presentation
      A single flat panel creates a bold, focused message that’s easy to display, frame, or pin—perfect for simple elegance.
    • Preservation
      Printed on sturdy cardstocks that resist bending and fading, ensuring your card remains presentable from mail to memory.
    • Protection
      Optional envelopes, coatings, and packaging help safeguard your cards in transit and add to the overall presentation.

    Go Premium with Card Enhancements

    Upgrade the look and feel of your flat greeting cards with premium options:

    • Soft-touch coating for a luxurious texture
    • Gold, silver, or holographic foil accents
    • Die-cut shapes or borders for a creative twist

    Why Choose Custom Boxes Lab?

    We specialize in flat greeting cards that are simple to send and powerful to receive. Whether for business or personal use, we print cards that leave a lasting impression.

    • Free design assistance and templates
    • Low minimums and bulk pricing
    • Fast production and turnaround
    • High-quality materials and finishes
    • Nationwide delivery with tracking
    • Expert support from print professionals

    Get a Quote Today

    Want a flat card that says it all—beautifully and professionally?To get cost-effective packaging boxes without compromising on quality, you can contact us at (469) 649-8706 or email us sales@customboxeslab.com

    Box Style Custom Flat Greeting Card
    Dimension (L + W + H) All Custom Sizes & Shapes
    Quantities Low Minimum Order Required
    Stock 10pt to 28pt (60lb to 400lb) Eco-Friendly Kraft, E-flute Corrugated, Bux Board, Cardstock
    Printing No Printing, CMYK, CMYK + 1 PMS color, CMYK + 2 PMS colors
    Finishing Gloss Lamination, Matte Lamination, Gloss AQ, Gloss UV, Matte UV, Spot UV, Embossing, Foiling
    Included Options Die Cutting, Gluing, Scoring, Perforation
    Additional Options Eco-Friendly, Recycled Boxes, Biodegradable
    Proof Flat View, 3D Mock-up, Physical Sampling (On request)
    Turnaround 4 - 6 Business Days, RUSH
    Shipping FREE

    When measuring a custom box, there are a few technical specifications that must be considered to ensure proper design, manufacturing, and fit for the product. Here are the major technical things to measure a custom box:

    Inside Dimensions (Critical for Product Fit)

    • Length (L): The longest side of the box measured inside from one corner to the opposite corner.
    • Width (W): The shorter side of the box measured inside perpendicular to the length.
    • Depth/Height (D or H): Measured inside from the bottom to the top opening of the box. Always specify that dimensions are given in Length × Width × Height.

    Outside Dimensions (Important for Shipping & Storage)

    • Measure the outer surfaces of the box including material thickness.
    • Outside measurements are used for pallet stacking, warehouse spacing, and shipping compliance.

    Material Thickness (Board Caliper)

    • The thickness of the packaging material (e.g., corrugated board, rigid stock, cardstock).
    • Impacts both the internal usable space and external dimensions.

    Flap Measurements

    • For boxes with flaps (e.g., mailer or shipping boxes), measure:
    • Inner flaps: Ensure they meet in the middle without overlapping too much.
    • Outer flaps: Allow proper sealing without gaps.

    Tolerances

    • Account for manufacturing tolerances (usually ±1/16" or ±2mm depending on material).
    • Ensure the product fits without being too tight or loose.

    Volume Capacity

    • Calculate internal cubic capacity (L × W × H).
    • Helps in determining how much space the product will occupy and shipping efficiency.

    Product Orientation

    • Decide how the product sits inside the box and measure accordingly.
    • Orientation affects whether length or width is the primary dimension.

    Die-Cut Openings or Windows

    • Measure exact placement, height, and width for any cutouts.
    • Ensure structural integrity when adding windows.

    Printing Bleed & Safe Zones

    • Include measurements for:
    • Bleed area: Extra space beyond the cut line for printing.
    • Safe zone: Inner area where critical text or logos should be placed.

    Closure Type & Locking Tabs

    • Measure slots, tabs, or locks for boxes with custom closures.
    • Precision is required to avoid misalignment during assembly.

    Packaging Style

    • Folds, creases, and scores must be measured for accurate dieline creation.
    • Different styles (e.g., RSC, tuck-end, mailer, sleeve) require specific panel measurements.

    Delivering Premium Packaging. Materials Tailored for Your Brand and Product.

    Cardboard Box

    Cardboard

    Giving cardboard material option to give versatility and durability to your box, widely used in many industries.

    Kraft Paper

    Kraft

    Offering eco-friendly kraft material for your product with the least environmental impact and minimizing waste.

    Rigid Paper

    Rigid

    Offering you premium rigid boxes, perfect for luxury packaging and high-end presentation.

    Corrugated Box

    Corrugated

    Custom Boxes Lab specializes in strong, reliable corrugated boxes ideal for shipping and storage.

    Testimonials

    Thomas JT

    United States

    “CBL delivered attractive custom perfume boxes with excellent communication throughout the process. The glossy cardboard finish looked premium, and the final result was exactly what we wanted.”

    Will Rogers

    United States

    “Custom Boxes Lab delivered beautifully designed chocolate boxes with excellent die-cut detail and sturdy quality. Their attention to detail and innovative packaging truly exceeded expectations.”

    Kevin Cordova

    United States

    “Custom Boxes Lab delivered high-quality kraft cosmetic boxes with great attention to detail. Their team understood our requirements perfectly and exceeded expectations from start to finish.”

    Cynthia Minnie

    United States

    “Excellent service and premium-quality packaging. Custom Boxes Lab was responsive, detail-oriented, and delivered exactly what we needed. Highly recommended.”

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    We provide custom printed packaging for retail, e-commerce, cosmetics, CBD, and more.

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