Custom 10×13 Envelopes
Looking for a reliable envelope that fits full-size documents without folding or damage?
Our 10×13 envelopes are designed for mailing, storing, or organizing thick paperwork, catalogs, and presentations while maintaining a professional look.
Made from sturdy materials, these envelopes offer strong protection during handling or transit and are ideal for both office and commercial use.
With customization options available, you can create envelopes that match your brand and serve your business needs with ease.
Availability: In Stock

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Designed To Fit Your Needs
Whether you’re mailing promotional kits or filing paperwork, we offer 10×13 envelopes in multiple styles, colors, and finishes tailored to your purpose.
Material Options
Pick from strong, reliable materials:
- Kraft – Brown or white, durable and cost-effective
- Cardstock – Stiff and printable
- Tyvek – Lightweight, tear-resistant
- Recycled paper – Eco-friendly and sturdy
Accurate Sizing
Each envelope is sized to fit 8.5×11” sheets with extra room — ideal for contracts, presentations, or catalog bundles without needing to fold or trim.
Print Quality You Can Trust
Customize with your logo, return address, or branding using digital, offset, or CMYK printing. Our inks are long-lasting and sharp for a clean finish.
Smart Add-ons
Enhance your envelopes with optional features:
- Peel & seal closures
- Security tint for confidentiality
- Full-view windows
- Custom flaps or tabs
- Reinforced seams
Envelope Types Offered
Choose from multiple formats based on usage:
- Catalog envelopes
- Booklet-style side-open envelopes
- Expansion envelopes for bulk content
- Padded mailers
- Branded or plain options
3Ps That Guide Our Packaging
We focus on the essentials of a reliable envelope:
- Presentation – Clean designs, crisp printing, and professional formats
- Preservation – Keeps documents safe from damage or creases
- Protection – Thick materials resist tearing and moisture exposure
Finishes That Make a Difference
Upgrade the look and feel with:
- Gloss or matte coating
- Soft-touch lamination
- Foil stamping
- Embossed branding or labels
- Spot UV on logos or design elements
Why Choose Us?
We help businesses, offices, and brands create high-quality 10×13 envelopes that meet both functional and visual standards. With reliable service and attention to detail, we offer:
- Design support included
- Quick shipping options
- Flexible order sizes
- Chemical-free printing
- Consistent quality control
- US-wide delivery available
Get A Quote
Let’s get started on your 10×13 envelope order.
Call us at 0000 or email us to request a quote tailored to your needs.
Dimensions | All Custom Boxes & Shapes, Paper Bags, Mylar Bags, Tube Packaging |
Availability | InStock |
Printing | No Printing, CMYK, CMYK + 1 PMS Color, CMYK + 2 PMS Colors |
Paper Stock | 10pt to 28pt (60lb to 400lb) Eco-Friendly Kraft, E flute Corrugated, Bux Board, Cardstock, Mylar, Paper Bag Stock, Tube Paper, Bespoke Packaging Materials |
Quantities | No Minimum Order Required |
Coating | Gloss, Matte, Spot UV, Holographic Foiling, Gold Foiling, Embossing, Silver Foiling, Debossing |
Default Process | Die Cutting, Gluing, Scoring, Perforation |
Options | Custom Window Cut Out, Gold/Silver Foiling, Embossing, Raised Ink, PVC Sheet, Bespoke Die-Cuts |
Proof | Flat View, 3D Mock-up, Physical Sampling (On request) |
Turn Around Time | 7-10 Business Days, Rush Available |
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
Giving cardboard material option to give versatility and durability to your box, widely used in many industries.

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

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

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