White Mailer Boxes

Packaging That’s Clean, Compact & Customizable

Perfect for subscription brands, online stores, promotional kits, and influencer packages, our white mailer boxes combine sleek design with structural strength.

Materials That Deliver Durability with a Soft Touch

We use high-quality corrugated stock designed for protection, performance, and professional presentation.

• White E-Flute Corrugated Board – Lightweight yet strong for secure shipping
• Kraft-Lined White Mailers – Clean exterior, eco-conscious core
• Moisture-Resistant Coatings – Keeps boxes looking crisp in transit
• Soft-touch matte or gloss lamination – Adds a refined, tactile finish

Structures That Fit Your Brand & Product Line

From luxury unboxings to startup shipping, we create mailer boxes that align with your product and customer journey.

• Front-lock mailer with dust flaps – Secure and elegant
• Auto-lock base mailers – Ideal for faster assembly
• Self-seal or tab-lock closures – Built for eCommerce efficiency
• Internal dividers or inserts – For cosmetics, bottles, or tech items

Print That Turns White Into Signature Branding

White mailers give your brand a minimal, modern platform to shine. We make your message unforgettable from the outside in.

• Full-color CMYK or Pantone Printing – Edge-to-edge customization
• Sleek minimalist logos or bold, creative artwork
• Foil stamping, embossing, or spot UV – Add premium flair
• Smart space usage – Product instructions, social media handles, QR codes

Functional Features That Make Delivery Feel Luxe

More than just a box, our mailers are designed to improve your workflow and your customer experience.

• Flat-packed for easy storage
• Quick-to-assemble with fold-and-tuck design
• Tear strips for frustration-free opening
• Branded interiors for a surprise reveal moment

The 3Ps of White Mailer Box Packaging

Presentation

Sleek white finish elevates your product with an upscale, editorial look.

Preservation

Durable corrugated flutes and coatings protect your goods through the journey.

Protection

Custom-fit sizing, inserts, and secure closures keep your contents safe and in place.

Why 5000+ Brands Use Our Mailer Boxes

We’re the packaging partner trusted by boutique brands, subscription services, and eCommerce giants across the U.S.

• No Minimum Orders – Perfect for growing brands or limited editions
• Free Custom Design Support – Branding that sells
• Fast U.S. Production & Shipping – Stay on schedule
• Eco-Friendly & Recyclable Stock Options – Ship smart, stay green
• Experts in DTC and Retail Packaging Compliance

Get a Free Quote Today

Create packaging that feels as good as it looks. Call 0000 or email us now to start your custom white mailer box project with Custom Boxes Lab.

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.