Tri Seal Pouches

Slim Yet Strong—Ideal for Efficient Packaging

Tri seal pouches are sealed on three sides with one open end for filling, making them ideal for both manual and automated filling lines. Their flat profile makes them great for single-serve items, trial packs, and on-the-go usage.

Materials

We use high-quality materials that ensure barrier protection and lasting shelf life.

• PET/PE laminates – Strong and food-safe
• Foil-based films – Great for aroma and moisture protection
• Kraft-paper laminates – Eco-friendly with a natural look
• Recyclable or biodegradable options – Sustainable without compromising quality

Sizes

From compact trial sizes to medium flat packs, we customize pouches to your fill volume.

• Small formats for sachets, spices, or pills
• Mid-size options for trail mixes, supplements, and cosmetics
• Large pouches for bulk powders or dry foods
• Custom dimensions based on product density and packaging requirements

Printing

Turn your pouch into a pocket-sized billboard with eye-catching prints.

• CMYK and Pantone color options
• Gloss, matte, or soft-touch finishes
• Foil stamping or spot UV for high-end branding
• Clear or frosted windows to show off the product

Add-ons

Increase ease-of-use and customer engagement with these enhancements.

• Tear notches for easy opening
• Resealable zippers for repeat usage
• Euro hole for peg display in retail
• Printed QR codes, promotions, or instructions

The 3Ps Approach

Presentation

Despite their compact size, tri seal pouches offer a strong visual canvas for your branding, ingredients, and design.

Preservation

Our pouches help maintain product quality with moisture and oxygen barriers—keeping contents fresh and safe.

Protection

Tight seals and strong films guard your product against leaks, tampering, and external elements throughout transport.

Why Choose Custom Boxes Lab?

Thousands of brands trust us to turn basic packaging into branded experiences.

• FDA-approved materials and food-grade films
• Free layout support and digital mockups
• Low MOQs and cost-effective production
• Eco-conscious inks and recyclable structures
• Fast shipping across the U.S.

Get a Quote Today

Ready to seal the deal with packaging that delivers? Call 0000 or email us now to create custom tri seal pouches 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.