Custom Flat Cardboard Box

Need packaging that keeps slim products secure while making your brand look polished? Our Flat Cardboard Box is custom-made to fit books, apparel, prints, accessories, gift sets, and other low-profile products. We offer tailored sizes, durable cardboard materials, high-quality printing, and premium finishes to turn simple packaging into a stronger sales tool. Choose Custom Boxes Lab for flat boxes built around your product, presentation, and business goals.

Availability: In Stock

Sample Price: $0.10 per item

Send Us Inquiry












    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.

    Custom Flat Cardboard Boxes Built Around Your Brand

    Give slim and low-profile products packaging that looks intentional, protects their presentation, and supports a smoother packing process. At Custom Boxes Lab, we create each Flat Cardboard Box according to your required dimensions, artwork, product weight, and preferred opening style. The result is packaging that fits more accurately, presents your product professionally, and gives customers a branded experience from the first look.

    A Better Fit for Flat and Lightweight Products

    Oversized packaging can make a product feel less refined and may require unnecessary filling material. Our custom flat cardboard boxes are designed for products that need a shallow, structured format, including books, documents, apparel, picture frames, printed materials, small electronics, accessories, subscription kits, and gift items.

    We can adjust the length, width, depth, flaps, closures, and internal support so the box works for your actual product instead of forcing your product into a standard size.

    Cardboard Materials Selected for the Job

    We help you choose the material according to the level of strength, print quality, and presentation your product requires. Cardstock is an excellent option for lightweight retail products and branded presentation boxes. Kraft cardboard offers a natural appearance that suits minimal and sustainability-focused branding. Corrugated cardboard can be used when greater rigidity and shipping protection are required.

    Available material choices may include:

    • Cardstock in suitable thicknesses
    • Natural brown or white kraft stock
    • Single-wall corrugated cardboard
    • Custom inserts or dividers for added organization

    Custom Printing That Keeps Your Brand Visible

    A plain box completes an order, but a professionally printed box promotes the business behind it. We can customize your Flat Cardboard Box with your logo, brand colors, product details, instructions, patterns, or campaign artwork. CMYK printing supports detailed full-color graphics, while Pantone color matching can help maintain greater consistency for signature brand shades.

    For a more premium appearance, choose finishing options such as matte or gloss lamination, spot UV, foil stamping, embossing, or debossing. These details can create visual contrast, improve shelf appeal, and make the packaging feel more distinctive without overcrowding the design.

    Made for Retail, Gifting, and E-Commerce

    Our flat cardboard packaging can be developed for store presentation, promotional kits, online orders, corporate gifting, product launches, and subscription programs. Depending on your requirements, we can produce tuck-style boxes, mailer-inspired structures, folding cartons, or flat-pack designs that are assembled when needed. This flexibility helps businesses organize inventory and create packaging that suits their packing workflow.

    Why Order from Custom Boxes Lab?

    We combine custom sizing, structural guidance, printing support, and material options in one packaging service. Our team works with your specifications to create a box that supports both product protection and brand presentation. Whether you are preparing a small branded launch or ordering packaging for regular sales, we help you select practical features without losing the commercial impact of the design.

    Choose us for:

    • Custom dimensions and box styles
    • Brand-focused printing and finishing
    • Material recommendations based on product needs
    • Packaging for small or large business orders
    • Design assistance for a production-ready result

    Turn Every Flat Box into a Brand Opportunity

    Your packaging should do more than hold a product. It should reinforce quality, make fulfillment easier, and give customers another reason to remember your name. Order your custom Flat Cardboard Box from Custom Boxes Lab and create packaging that fits precisely, looks professional, and helps your products arrive with a stronger branded presence. Request a custom quote today and let us build the right flat packaging solution for your business.

    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 Cardboard Box
    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.

    Foil Stamping

    Add a premium metallic finish to your packaging with foil stamping. It enhances brand visibility and gives boxes a luxury appearance.

    Spot UV

    Spot UV adds glossy highlights to selected areas of your packaging design. It creates contrast and improves the overall visual appeal.

    Gloss

    Gloss finishing provides a smooth and shiny surface that makes packaging colors look more vibrant and professional.

    Holographic Foiling

    Holographic foiling creates a reflective rainbow effect that changes under light. It gives packaging a modern and eye catching look.

    Embossing

    Embossing raises selected design elements above the surface of the packaging. It adds texture and creates a premium feel.

    Debossing

    Debossing presses graphics into the packaging surface for a clean and elegant appearance. It adds depth and sophistication.

    Matte

    Matte finishing gives packaging a smooth non shiny surface. It reduces fingerprints and provides a modern premium look.

    Soft Touch Lamination

    Soft touch lamination adds a velvety smooth texture to your packaging. It also protects printed surfaces from scratches and wear.

    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.”

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

    Trusted by the world's top brands